💨 Monitair 110 Dehumidifier | DH110AX/L with Defrost + LPHW Air Heating – Single Phase
Transform Your Indoor Pool Environment with Intelligent Climate Control
The Monitair 110 DH110AX/L is a professional-grade dehumidifier engineered specifically for indoor swimming pools, therapy pools, spa facilities, and health clubs. Combining powerful 4.5L/hour moisture extraction with LPHW (Low Pressure Hot Water) air heating, this single-phase unit delivers comprehensive climate control while protecting your pool building from moisture damage.
What makes the Monitair 110 exceptional? It doesn’t just remove moisture – it recovers the latent energy from water vapor and converts it into usable heat, dramatically reducing your overall energy costs while creating a warm, dry, and comfortable pool environment.
Why Choose the Monitair 110 DH110AX/L?
✅ Superior Dehumidification Performance
Extract 4.5 litres per hour (108 litres per day) of moisture from your pool hall air, maintaining optimal humidity levels between 20-80% RH with the adjustable humidistat.
🔥 Dual Climate Control System
Combines 6.4kW heat recovery from dehumidification with 8.9kW LPHW air heating, delivering a total maximum heat output of 12.2kW to your pool space. Say goodbye to cold, clammy pool halls.
❄️ Advanced Defrost System (Standard)
Operates reliably down to 5°C, making it perfect for year-round use even in unheated or partially heated spaces.
💰 Energy-Efficient Operation
Recovers free heat from the moisture removal process, keeping your boiler off longer and accelerating pool hall drying. This isn’t just climate control – it’s intelligent energy management.
🛡️ Building Protection
Prevents corrosion, mold, and bacteria growth by controlling moisture levels. Protect your structural steelwork, timber, and finishes from the destructive effects of unchecked humidity.
🔇 Quiet Operation
At just 48.5 dB(A) at 3 meters, the Monitair 110 provides powerful performance without disrupting the peaceful pool environment.
Complete Technical Specifications
Dehumidification Performance
| Specification | Value |
|---|---|
| Model Number | DH110AX/L |
| Dehumidification Capacity | 4.5 litres/hour |
| Daily Capacity | 108 litres/day |
| Operating Conditions | Air at 29°C/60% RH, Pool water at 28°C |
| Humidistat Range | 20% to 80% RH (adjustable) |
| Defrost Capability | Standard (operates down to 5°C) |
| Air Flow Rate | 1,180 m³/hr (nominal recirculating) |
Heat Output & Recovery
| Specification | Value |
|---|---|
| Heat Recovery from Dehumidification | 6.4 kW |
| LPHW Air Heating Output | 8.9 kW (at 82°C boiler water) |
| Maximum Combined Heat to Air | 12.2 kW |
| Recommended Boiler Output | 9.6 kW |
Electrical Specifications – Single Phase
| Specification | Value |
|---|---|
| Electrical Supply | 230V / 50Hz Single Phase |
| Nominal Power Consumed | 2.12 kW |
| Nominal Running Current | 9.3 Amps |
| Full Load Amps (FLA) | 10.6 Amps |
| Compressor LRA | 66 Amps |
| Required Fuse | 16 Amp (motor rated) |
Plumbing Connections
| Specification | Value |
|---|---|
| LPHW Boiler Inlet | 22mm copper stub |
| LPHW Boiler Outlet | 22mm copper stub |
| LPHW Flow Rate | 9.6 litres/min |
| LPHW Pressure Drop | 2.8m head |
| Condensate Drain | 15mm diameter stub |
Dimensions & Weight – Wall Mount Model
| Specification | Value |
|---|---|
| Width | 1,520 mm |
| Height | 796 mm |
| Depth | 385 mm |
| Weight (Unpacked) | 153 kg |
Dimensions – Through-The-Wall (TTW) Model
| Specification | Value |
|---|---|
| Width | 1,474 mm |
| Height (to top duct) | 1,167 mm |
| Depth | 350 mm |
| Weight (Unpacked) | 153 kg |
Performance & Environment
| Specification | Value |
|---|---|
| Noise Level | 48.5 dB(A) @ 3 meters |
| Refrigerant Type | R407C (ozone friendly) |
| Installation Type | Wall mount or Through-The-Wall (TTW) |
| Finish | Smooth white coated alloy |
| Warranty | 2 years parts and labour (manufacturer) |
Room Size & Capacity Guide
Suitable Pool Hall Volumes
The Monitair 110’s 4.5L/hr dehumidification capacity makes it ideal for the following indoor pool environments:
| Pool Hall Type | Typical Pool Size | Approximate Hall Volume | Suitability |
|---|---|---|---|
| Domestic Indoor Pool | 8m x 4m (32m²) | 200-300 m³ | ✅ Excellent |
| Small Therapy Pool | 6m x 3m (18m²) | 150-250 m³ | ✅ Excellent |
| Private Spa/Hot Tub Room | Up to 30m² hall | 150-200 m³ | ✅ Excellent |
| Medium Health Club Pool | 10m x 5m (50m²) | 300-400 m³ | ✅ Good |
| Hotel Spa Pool | Up to 40m² hall | 250-350 m³ | ✅ Good |
💡 Sizing Note: These recommendations assume proper pool hall construction with vapor barriers, adequate insulation, and minimal air infiltration. Rooms with large glazed areas or poor insulation may require enhanced capacity.
Estimated Dehumidification Performance
Moisture Removal in Various Conditions
Understanding how quickly the Monitair 110 can control humidity helps you plan installation and set expectations.
| Pool Hall Condition | Initial Humidity | Target Humidity | Estimated Time to Stabilize* |
|---|---|---|---|
| After Pool Cover Removal | 75% RH | 60% RH | 2-4 hours |
| Heavy Bather Load (6-8 people) | 70% RH | 60% RH | 1-2 hours |
| Overnight Humidity Rise | 68% RH | 55% RH | 1-3 hours |
| Startup from Shutdown | 80% RH | 60% RH | 4-8 hours |
*⚠️ Disclaimer: These are estimates based on typical conditions (30°C air, 28°C pool water, 200-300m³ hall volume). Actual performance depends on room size, air temperature, pool surface area, pool temperature, bather load, ventilation rate, and building construction quality.
Running Cost Analysis
Energy Efficiency Compared to Traditional Methods
The Monitair 110’s heat recovery system delivers substantial savings compared to ventilation-only approaches:
| Heating Method | Estimated Annual Running Cost* | Energy Efficiency | Moisture Control |
|---|---|---|---|
| Monitair 110 (Heat Recovery) | £800 – £1,200 | ⭐⭐⭐⭐⭐ Excellent | ✅ Superior |
| Ventilation + Air Heating | £2,500 – £3,500 | ⭐⭐ Poor | ⚠️ Adequate |
| Ventilation Only | £1,800 – £2,800 | ⭐⭐⭐ Moderate | ❌ Inadequate |
| No System (Building Damage) | £0 (upfront) | N/A | ❌ Destructive |
*Based on typical domestic indoor pool (8m x 4m), 8-10 hours daily use, UK electricity rates £0.30/kWh (2025), gas at £0.07/kWh. Your actual costs will vary based on usage patterns, energy tariffs, and pool hall size.
💰 Payback Period: Most installations see ROI within 3-5 years through reduced heating costs and prevention of structural damage repairs.
Installation Options
1. Wall Mount Installation
Best for: Pool halls with adjacent wall space and aesthetic preferences for minimal intrusion.
Features:
- Mounts directly on interior pool hall wall
- Variable air outlet grille position
- Clean, integrated appearance
- Easy access for maintenance
- Dimensions: 1,520mm W x 796mm H x 385mm D
Requirements:
- Minimum clearance: 500mm above and to sides for airflow
- Floor level mounting recommended for optimal air circulation
- LPHW plumbing connections accessible from rear
- 15mm condensate drain to waste
2. Through-The-Wall (TTW) Installation
Best for: Plant room installations where you want the unit outside the pool hall.
Features:
- Unit located in adjacent plant room
- Ducted air supply and return through wall
- Supplied with decorative grilles for pool hall side
- Ideal for confined pool hall spaces
- Reduces in-room noise further
- Dimensions: 1,474mm W x 1,167mm H x 350mm D
Requirements:
- Wall penetrations for supply and intake ducts
- Machine and ducts must be sealed to wall
- All cavities sealed to prevent recirculation
- Cavity walls require non-porous sleeve/board around openings
📄 Important: Full installation diagrams available in technical datasheet (see Downloads section below)
Key Features & Benefits
🌡️ Integrated LPHW Air Heating System
Unlike basic dehumidifiers, the DH110AX/L includes a Low Pressure Hot Water heating battery that connects to your existing boiler system. This eliminates the need for separate radiators or fan heaters in your pool hall, providing comprehensive climate control from one unit.
Benefit: Single integrated system saves installation costs, reduces maintenance points, and provides superior air distribution.
🔄 Heat Recovery Technology
The Monitair 110 captures the latent energy from water vapor during dehumidification and converts it into sensible heat – delivering 6.4kW of free heating back into your pool space.
Benefit: Reduces boiler runtime by up to 40%, accelerates pool hall drying, and dramatically cuts energy bills.
🎚️ Adjustable Humidistat Control (20-80% RH)
Set your preferred humidity level anywhere from 20% to 80% relative humidity. The unit automatically maintains your target, ensuring consistent comfort.
Benefit: Precise control prevents over-drying (which wastes energy) and under-drying (which allows structural damage).
❄️ Automatic Defrost System
Built-in defrost functionality allows operation down to 5°C, preventing ice buildup on the evaporator coils during cold weather or startup periods.
Benefit: Reliable year-round performance without manual intervention, even in unheated buildings.
🔇 Low Noise Design (48.5 dB(A))
Engineered for quiet operation, the Monitair 110 won’t disrupt conversations or relaxation in your pool environment.
Benefit: Peaceful swimming experience without constant fan noise – quieter than normal conversation.
🌍 Ozone-Friendly R407C Refrigerant
Uses environmentally responsible refrigerant that doesn’t deplete the ozone layer.
Benefit: Future-proof investment compliant with environmental regulations.
🛠️ Built-In 3-Way Motorized Valve
Models with LPHW heating include an integrated motorized valve for simplified plumbing and control.
Benefit: Reduces installation complexity and additional component costs.
⚙️ Robust Construction & 2-Year Warranty
Built with smooth white coated alloy casing and backed by a comprehensive 2-year parts and labour warranty from the manufacturer.
Benefit: Corrosion-resistant in high-moisture environments with peace of mind coverage.
How the Monitair 110 Protects Your Investment
Preventing Costly Structural Damage
Indoor pools create one of the most challenging interior environments. Without proper humidity control, moisture damage can cost tens of thousands to repair:
What Happens Without Dehumidification:
❌ Corrosion of structural steelwork – requires expensive beam replacement
❌ Timber rot in roof structures – leads to dangerous structural failure
❌ Mold and bacteria growth – health hazards and unpleasant odors
❌ Paint and coating failure – constant repainting expenses
❌ Condensation on glazing – dripping water and frame damage
❌ Deterioration of plasterboard and finishes – complete interior refurbishment needed
❌ Increased heating costs – moist air is harder to heat
What the Monitair 110 Provides:
✅ Controlled humidity levels (55-65% RH ideal) – prevents all moisture-related damage
✅ Free heat recovery – reduces heating bills by 30-40%
✅ Warm, dry air circulation – prevents condensation on cold surfaces
✅ Comfortable swimming environment – enhances user experience
✅ Extended building lifespan – protects your capital investment
✅ Lower maintenance costs – fewer repairs and interventions needed
💡 Real Cost Comparison: Repairing structural damage from moisture can cost £15,000-£50,000+. A Monitair 110 system costs a fraction of that and prevents damage before it starts.
Clearance & Installation Requirements
Minimum Installation Clearances
For optimal performance and serviceability:
| Location | Minimum Clearance |
|---|---|
| Above Unit | 500mm (air discharge area) |
| Sides of Unit | 500mm (air intake and service access) |
| Front of Unit | 800mm (filter access and maintenance) |
| Rear of Unit | 100mm (plumbing connections) |
Electrical Requirements
⚡ Supply: 230V / 50Hz Single Phase
⚡ Fuse: 16 Amp (motor rated)
⚡ Dedicated Circuit: Required (do not share with other equipment)
⚡ Wiring: 2.5mm² minimum (consult qualified electrician)
⚡ Compressor LRA: 66 Amps (ensure adequate starting capacity)
⚠️ Professional Installation Required: This unit must be installed by a qualified electrician and HVAC technician. Incorrect installation voids warranty.
LPHW Plumbing Requirements
🔧 Boiler Water Temperature: 80-82°C (recommended)
🔧 Flow Rate: 9.6 litres/minute
🔧 Pressure Drop: 2.8m head (ensure adequate pump capacity)
🔧 Connections: 22mm copper stub (inlet and outlet)
🔧 System Pressure: Low pressure hot water system compatible
🔧 Boiler Output: Minimum 9.6kW recommended
💡 Tip: The built-in 3-way motorized valve simplifies integration with your existing boiler system. An air thermostat is included with units featuring LPHW heating.
Condensate Drainage
💧 Drain Connection: 15mm diameter stub
💧 Drain Type: Gravity drain to waste
💧 Fall Required: Minimum 1:40 (25mm per meter)
💧 Trap: Optional trap recommended to prevent odors
💧 Discharge Rate: Approximately 4.5 litres/hour under full dehumidification
Frequently Asked Questions
🔍 What size pool hall is the Monitair 110 suitable for?
The DH110AX/L is ideal for domestic indoor pools, therapy pools, and small commercial installations. It effectively serves pool halls up to 300-400 m³ (approximately 8-10m x 4-5m pools with standard ceiling height). For larger facilities, multiple units or higher-capacity models may be required.
Key factors affecting sizing:
- Pool surface area (larger pools evaporate more water)
- Hall temperature and humidity targets
- Bather load (people add moisture)
- Building construction quality (insulation, vapor barriers)
- Ventilation rate and air infiltration
Consult the Guidelines to Pool Hall Construction PDF (see Downloads) for comprehensive sizing guidance.
💡 Do I need the LPHW air heating option?
You should choose the DH110AX/L (with LPHW heating) if:
- You want to eliminate separate radiators or fan heaters
- Your pool hall requires additional heating beyond heat recovery
- You have an existing boiler system (gas, oil, or biomass)
- You want the most efficient integrated climate control solution
- Your pool hall has significant heat loss (large glazing, poor insulation)
The standard DH110AX (without LPHW) may be sufficient if:
- Your pool hall is very well insulated with minimal heat loss
- You’re in a mild climate or only use the pool in summer
- The 6.4kW heat recovery alone meets your heating needs
- You prefer electric heating or have separate heating systems
💰 Cost Note: While the LPHW version costs more upfront, it typically delivers lower running costs than electric heating alternatives.
⏱️ How long does it take to dehumidify my pool hall?
This depends on several factors, but typical stabilization times are:
Initial startup from high humidity (80% RH → 60% RH): 4-8 hours
After pool cover removal (75% RH → 60% RH): 2-4 hours
Daily maintenance during use: Continuous operation maintains target humidity
The Monitair 110 extracts 4.5 litres per hour, which means in a 300m³ hall at 30°C, it can reduce relative humidity by approximately 10-15% in 2-3 hours under typical conditions.
⚠️ Important: These are estimates. Actual performance varies with room size, temperature, pool surface area, and bather load.
🔇 How noisy is the Monitair 110?
At 48.5 dB(A) measured at 3 meters, the Monitair 110 is approximately as loud as:
- A quiet conversation
- Light rainfall
- A library or study room
It’s specifically designed for pool environments where excessive noise would be disruptive. Many users report that once installed, they barely notice the unit running.
💡 Even Quieter: Through-The-Wall (TTW) installations further reduce in-room noise by placing the unit in an adjacent plant room.
❄️ What does “defrost” mean and why is it important?
The defrost system prevents ice buildup on the evaporator coils when operating in cold conditions (below 10-15°C). Without defrost capability, ice formation would:
- Block airflow through the unit
- Reduce dehumidification performance
- Potentially damage the equipment
Why the Monitair 110’s defrost matters: ✅ Operates reliably down to 5°C
✅ Automatic operation (no manual intervention)
✅ Essential for UK winter conditions
✅ Ensures consistent performance year-round
✅ Protects against startup issues in cold plant rooms
If your pool hall or plant room can drop below 15°C, defrost capability is essential, not optional.
💰 What are the running costs?
Electricity consumption:
- Nominal power: 2.12 kW
- If running 8 hours/day: 2.12 kW x 8 hours = 16.96 kWh/day
- At £0.30/kWh: Approximately £5.09 per day or £1,860/year
However, this is offset by:
- 6.4 kW of free heat recovery (reduces boiler runtime)
- Lower heating costs compared to ventilation-only systems
- Prevention of structural damage repairs (potentially £15,000-£50,000)
Real-world savings: Most users report 30-40% reduction in total pool hall heating costs compared to traditional ventilation and heating methods.
💡 Cost Reduction Tips:
- Use a pool cover when not swimming (reduces evaporation by 70-90%)
- Set humidistat to 60% RH (lower = more energy used)
- Ensure proper building insulation and vapor barriers
- Maintain the unit regularly for optimal efficiency
🛠️ What maintenance does the Monitair 110 require?
Monthly:
- Check and clean washable air filters (located behind grilles)
- Inspect condensate drain for blockages
- Verify humidity levels are being maintained
Quarterly:
- Vacuum dust from intake and discharge grilles
- Check LPHW connections for leaks
- Verify proper operation of motorized valve
Annually:
- Professional service inspection (recommended)
- Check refrigerant levels and pressures
- Inspect electrical connections
- Verify defrost cycle operation
- Check compressor oil levels
🔧 Service Support: Calorex dehumidifiers are supported by a nationwide network of authorized service engineers. Your 2-year warranty includes parts and labour coverage.
💡 Filter Access: Filters are easily accessible from the front of the unit – no tools required for routine cleaning.
🏊 Can I install this myself?
No – professional installation is strongly required and recommended.
The Monitair 110 requires:
- Electrical work: 230V single-phase supply with 16A fused spur (must comply with BS 7671 wiring regulations)
- Plumbing work: LPHW connections to boiler system, pressure and flow rate verification
- HVAC expertise: Correct sizing, placement, and commissioning for optimal performance
- Building knowledge: Understanding of vapor barriers, condensation risks, and air circulation
Installation by unqualified persons: ❌ Voids manufacturer warranty
❌ May violate building regulations
❌ Creates safety hazards (electrical, refrigerant)
❌ Results in poor performance and efficiency
❌ Can damage the unit or your building
✅ Hire qualified professionals: Look for HVAC contractors with experience in pool dehumidification systems. Many pool builders and installers offer complete packages including the Monitair 110 and professional installation.
📏 What’s the difference between Wall Mount and Through-The-Wall (TTW) models?
| Feature | Wall Mount | Through-The-Wall (TTW) |
|---|---|---|
| Installation Location | Inside pool hall on wall | In adjacent plant room |
| Visibility | Unit visible in pool hall | Only grilles visible in pool hall |
| Noise in Pool Hall | 48.5 dB(A) | Slightly quieter (unit remote) |
| Aesthetics | Clean white unit finish | Decorative grilles only |
| Maintenance Access | Direct access from pool hall | Access from plant room |
| Installation Complexity | Simpler (wall mount) | More complex (wall penetrations) |
| Space Requirements | Uses pool hall wall space | Uses plant room space |
| Cost | Lower | Higher (ducting, grilles, labor) |
Choose Wall Mount if: You have adequate pool hall wall space, prefer simpler installation, and don’t mind the unit being visible.
Choose TTW if: You want the unit hidden in a plant room, have limited pool hall space, or want the quietest possible in-room experience.
💡 Note: Both versions have identical performance specifications – the choice is about installation preference and aesthetic priorities.
🌡️ What humidity level should I maintain?
Recommended range: 55-65% RH
Too high (>70% RH):
- Condensation on cold surfaces (windows, walls)
- Increased risk of mold and bacteria
- Uncomfortable “clammy” feeling
- Accelerated corrosion of metal components
Too low (<50% RH):
- Dry skin and respiratory discomfort
- Increased evaporation from pool (higher heating costs)
- Wasted energy over-dehumidifying
- Potential for static electricity buildup
💡 Seasonal Adjustments:
- Winter: Set to 55-60% RH (prevents condensation on cold windows)
- Summer: Set to 60-65% RH (more comfortable in warmer conditions)
🎚️ The Monitair 110’s adjustable humidistat (20-80% RH) gives you complete control to find your perfect balance of comfort, efficiency, and building protection.
🔧 Do I need an air thermostat?
Yes – an air thermostat is essential and included with the DH110AX/L model.
The air thermostat:
- Controls when LPHW air heating activates
- Prevents overheating of pool hall
- Optimizes energy efficiency
- Works in conjunction with the humidistat
- Typically set to 28-30°C for pool hall comfort
How it works:
- Humidistat controls dehumidification (always provides 6.4kW heat recovery)
- Air thermostat controls additional LPHW heating (adds up to 8.9kW when needed)
- Combined system maintains both humidity and temperature targets
💡 One thermostat is included with each new DH110AX/L unit. It should be wall-mounted in the pool hall away from direct air currents and heat sources.
🌍 Is the Monitair 110 environmentally friendly?
Yes – highly efficient and eco-conscious:
✅ Heat Recovery: Recycles 6.4kW of free heat from moisture, reducing fossil fuel consumption
✅ Ozone-Friendly Refrigerant: Uses R407C with zero ozone depletion potential
✅ Energy Efficient: Delivers more heat than energy consumed through heat pump technology
✅ Reduces Waste: Prevents premature building deterioration and replacement
✅ 2-Year Warranty: Ensures longevity and reduced equipment turnover
Carbon Footprint Comparison:
Using heat recovery dehumidification produces approximately 40-50% less CO₂ than traditional ventilation heating methods for maintaining the same pool hall conditions.
♻️ Bonus: The smooth white coated alloy casing is fully recyclable at end of life.
⚠️ What happens if the unit fails?
With the 2-year manufacturer warranty, you’re protected:
- Parts and labour coverage for manufacturing defects
- Nationwide network of authorized service engineers
- Rapid response for critical pool facility equipment
Common causes of premature failure (preventable): ❌ Blocked air filters (clean monthly)
❌ Blocked condensate drain (check quarterly)
❌ Incorrect electrical supply (verify installation)
❌ Poor maintenance (follow schedule)
🛠️ Preventive Maintenance is Key: The vast majority of dehumidifier issues are prevented by simple regular maintenance. Keep filters clean, drains clear, and schedule annual professional inspections.
💡 Extended Warranty: Some installers and suppliers offer extended warranty options beyond the standard 2-year coverage – inquire when purchasing.
Real-World Installation Examples
Example 1: Domestic Indoor Pool (8m x 4m)
Pool Details:
- Pool size: 8m x 4m (32m² surface area)
- Pool hall volume: 280 m³
- Usage: Family use, 6-8 hours daily
- Building: Well insulated, double-glazed windows
Monitair 110 Performance:
- Maintains 60% RH consistently
- Delivers 12.2kW total heat (recovery + LPHW)
- Eliminated need for 3 wall-mounted radiators
- Estimated energy savings: £1,100/year vs. previous ventilation system
Installation: Wall mount inside pool hall, connected to existing gas boiler
Example 2: Therapy Pool & Spa Facility
Pool Details:
- Pool size: 6m x 3m heated to 32°C
- Spa/hot tub: 2.5m diameter
- Pool hall volume: 220 m³
- Usage: 10-12 hours daily, higher humidity from hot tub
Monitair 110 Performance:
- Handles elevated humidity from 32°C therapy pool and hot tub
- Defrost system essential for early morning cold starts
- Through-The-Wall installation keeps plant room separate
- Quiet operation critical for therapy environment (48.5 dB(A))
Installation: TTW model in adjacent plant room, integrated with existing heating system
Example 3: Small Hotel Spa Pool
Pool Details:
- Pool size: 10m x 4m
- Pool hall volume: 350 m³ (larger hall with high ceiling)
- Usage: Guest use, variable bather load
- Building: Older structure with some glazing
Monitair 110 Performance:
- Manages variable humidity from fluctuating bather loads
- Heat recovery significantly reduces boiler runtime
- Protects older building structure from moisture damage
- Adjustable humidistat allows seasonal optimization
Installation: Wall mount with supplementary air circulation fans for even distribution in larger hall
Downloads & Documentation
📄 Technical Documents & Resources
Essential reading before purchase and installation:
📄 Monitair 110 Technical Datasheet (opens in new tab)
Complete specifications, dimensions, electrical data, and installation diagrams for the Monitair 110 range. Includes wall mount and through-the-wall configurations with detailed measurements and connection points.
📄 Vaporex and Monitair Product Brochure 2022 (opens in new tab)
Comprehensive overview of the complete Calorex dehumidifier range including the Monitair 110. Contains comparative specifications, model selection guidance, warranty details, and performance data for all capacity levels.
📄 Guidelines to Pool Hall Construction 2022 (opens in new tab)
Essential design and construction guidance for indoor pool environments. Covers vapor barriers, insulation requirements, condensation prevention, glazing specifications, and best practices for building durable pool halls. Critical reading for new installations.
💡 Installer Note: Share these documents with your HVAC contractor and builder to ensure proper installation and building integration.
Why Buy from Parts4Tubs?
✅ Authorized Calorex/Certikin Dealer – Genuine products with full manufacturer warranty
✅ Expert Technical Support – Guidance on sizing and installation requirements
✅ Competitive Pricing – Best value on professional pool equipment
✅ Fast UK Delivery – Quick dispatch on in-stock items
✅ Established Reputation – Trusted supplier to trade and retail customers
Order Your Monitair 110 DH110AX/L Today
Transform your indoor pool environment with professional dehumidification and climate control.
The Monitair 110 DH110AX/L combines powerful 4.5L/hr moisture extraction with 12.2kW total heat output, providing comprehensive protection for your pool building while creating a warm, dry, and comfortable swimming environment.
What’s Included:
- Monitair 110 DH110AX/L dehumidifier unit
- Built-in 3-way motorized valve (for LPHW heating)
- Wall-mounted air thermostat (PG2000A)
- Installation instructions
- 2-year manufacturer’s warranty (parts and labour)
Not Included (required for installation):
- Electrical supply and wiring (230V/16A)
- LPHW plumbing connections and commissioning
- Condensate drain pipework
- Through-the-wall ducting kit (if TTW model chosen)
- Professional installation labour
⚠️ Professional Installation Strongly Recommended
Questions before ordering? Contact our technical team for sizing guidance, installation requirements, or compatibility with your existing systems.
Protect your pool building. Reduce your energy costs. Create perfect swimming conditions.
Order the Monitair 110 DH110AX/L now.



