Air-to-Water Heat Pumps for Whole-House Radiators & Hot Water.
The standard low-carbon upgrade for wet central heating systems. Powers underfloor heating, designer radiators, and high-pressure domestic hot water.
Technical Excellence & Specifications
Every CPSL installation conforms to rigorous Microgeneration Certification Scheme standards and precision heat loss modelling.
Wet Heating Integration
Connects directly into existing or upgraded central heating pipework, radiators, and hot water tanks.
5kW to 16kW Sizing
Precision sized to match exact heat loss without inefficient cycling or excessive electrical draw.
Unvented Cylinder Link
Pairs with high-recovery coil cylinders for rapid water heating to 60°C+ with anti-legionella cycles.
£7,500 Ofgem Support
Fully eligible under the Boiler Upgrade Scheme when replacing gas, oil, or LPG boilers.
Hydronic Balance and Low Flow Temperature Optimization
An air-to-water heat pump operates most efficiently when water is circulated at lower temperatures (35°C to 45°C) over prolonged cycles, contrasting with the abrupt cycling of 70°C gas boilers.
settings_suggest Our Air-to-Water Engineering Principles:
- verifiedHydraulic separation using primary-secondary pumping loops or volumisers to protect heat pump flow rates.
- verifiedMagnetic filtration and systemic chemical flushing to remove magnetite sludge from legacy Kent pipework.
- verifiedWeather compensation curve programming to automatically modulate water temperature according to ambient conditions.
- verifiedDual-zone temperature control for living rooms and bedrooms to maximise comfort while reducing energy usage.
We integrate unvented stainless steel cylinders with large dedicated heat pump coils (3m²+) to guarantee fast hot water recovery times under 35 minutes.
Get a Guaranteed Fixed-Price Quote
Schedule your room-by-room heat loss survey or request a transparent, fixed-price heat pump proposal. Our Maidstone engineers will verify your property eligibility in 24 hours.
Real Kent Home Transformations
See verified efficiency upgrades across Maidstone, Tunbridge Wells, and Ashford with our MCS-certified installations.
Oil Boiler to Daikin Altherma 3 (11kW)
Replaced a 19-year-old oil boiler. Integrated low-temperature double-panel radiators with weather compensation. Homeowner cut annual heating spend by 44%.
Gas Combi to Mitsubishi Ecodan (8.5kW)
Coupled with a 210L unvented hot water cylinder. Zero disruption installation completed in 2.5 days. SCOP achieved: 3.92 over winter.
LPG Tank to Vaillant aroTHERM plus
Eliminated expensive tanker deliveries. High-temp R290 natural refrigerant heating water to 65°C without electric backup immersion.
Our 4-Step Turnkey Process
From initial heat loss physics to final Ofgem £7,500 grant redemption, we manage every phase with zero subcontracted shortcuts.
Desktop & EPC Analysis
We review your EPC, property thermal envelope, and orientation to confirm suitability and verify £7,500 BUS grant eligibility upfront.
100% Free & No ObligationRoom-by-Room Heat Loss
A certified CPSL heating engineer visits your Kent property with laser measuring tools to calculate exact watt losses per room per BS EN 12831.
Fixed-Price ProposalClean 2-3 Day Install
Our in-house tidy installation team lays protective sheeting, removes redundant equipment, and installs acoustic vibration mounts with zero mess.
Zero Mess GuaranteeHandover & 10-Yr Care
We commission weather compensation, configure your smartphone app, redeem the £7,500 grant on your behalf, and activate your 10-year warranty.
Lifetime Local SupportFrequently Asked Questions
Everything you need to know about engineering standards, grants, and living with renewable systems in Kent.
help Can an air-to-water heat pump connect to my current radiators?
Yes. During our initial survey, we calculate the heat output of each radiator at 45°C–50°C flow temperatures. Radiators that are too small are upgraded to double-panel convectors.
help Will my shower pressure remain strong?
Yes! When installed with an unvented stainless steel cylinder, your hot water is delivered at full mains pressure, eliminating the need for noisy electric shower booster pumps.
help Does an air-to-water heat pump provide cooling?
Air-to-water systems primarily heat radiators and water. For active summer cooling, we recommend pairing with an air-to-air heat pump or underfloor cooling system.
help Is regular maintenance required?
Yes. An annual service maintains peak SCOP efficiency, validates your 10-year manufacturer warranty, and checks glycol anti-freeze levels.
Ready for Guaranteed Winter Warmth and Lower Energy Bills?
Secure your £7,500 non-repayable government grant and schedule a fixed-price quote. Our Maidstone-based team will confirm your property eligibility in under 2 minutes.