Custom Comfort gives you whole-home heating, cooling and ventilation without compromising the architecture. Slim ducts, flexible routing and a renewable-ready design — fully supported by the Custom Comfort team.
No radiators or wall cassettes dictating layouts. Slim ducts route around the structure, freeing walls and ceilings.
Pairs with air-source heat pumps for low-carbon performance and compatibility with grant-funded retrofits.
Heat-loss calculations, system design, supply and install — managed end-to-end by Custom Comfort's engineers.
Final specification is confirmed per project. Figures below are typical for the residential range.
| Parameter | Typical / range |
|---|---|
| Configuration | Small-duct, high-velocity (SDHV) air handler + coil |
| Modes | Heating, cooling, ventilation (3-in-1) |
| Supply duct diameter | 50–63mm flexible, sound-attenuating |
| External static pressure | High-static design for small-bore distribution |
| Heat source | Air-source heat pump (DX) or hydronic (boiler / buffer) |
| Fan / motor | EC variable-speed for efficiency & quiet running |
| Filtration | G4 standard; F7 / HEPA optional |
| Ventilation | Optional MVHR with heat recovery |
| Power supply | 230V / 50Hz |
| Refrigerant (DX) | R32 / low-GWP, F-gas compliant |
| Outlets | Round & slotted — wall, floor, ceiling |
| Control | Smart thermostat, zonable |
Specifications are indicative and subject to confirmation during system design. Custom Comfort products are supplied under UK conformity (UKCA/CE), with F-gas-compliant refrigerant handling for DX units.
Share your drawings and we'll handle heat-loss calculations, duct routing and outlet placement — then supply and install the complete system.
Request the full technical pack and CAD details for your project.