- HEP Heat and Air
- High-efficiency Air-conditioning

High-efficiency Air-conditioning
High-efficiency Air-conditioning | Air Conditioning | Heating and Air Conditioning | Bristol
Stay comfortable all year round with HEP’s high-efficiency air-conditioning systems, purpose-built for Bristol’s ever-changing climate. Our engineers pair cutting-edge heat-pump technology with precise airflow design to deliver whisper-quiet cooling in summer and economical heating in winter—without the eye-watering energy bills. From cosy Georgian terraces in Clifton to modern apartments on the Harbourside, we survey, size and install each solution to fit your space perfectly.
Choosing HEP means 24/7 support, extended warranties and smart controls that let you set the perfect temperature from your phone. We handle everything—initial consultation, bespoke ductwork, tidy installation and ongoing maintenance—so you can relax and enjoy effortless air conditioning for years to come.
Upgrade to cleaner, greener comfort today and see why Bristol homeowners and businesses trust HEP for reliable, future-proof air conditioning that keeps costs down and smiles up.
FAQs
What defines a high-efficiency air-conditioning system and how does it differ from standard units?
High-efficiency air conditioners use advanced inverter or variable-speed compressors, larger heat-exchange coils, and environmentally friendly refrigerants such as R32 to deliver more cooling or heating with less electricity. They carry higher Seasonal Energy Efficiency Ratio (SEER) and Seasonal Coefficient of Performance (SCOP) ratings—typically SEER 18–24 compared with SEER 13–15 for older models—meaning they consume 20-40 % less power for the same comfort level. They also modulate output continuously rather than cycling on/off, which reduces temperature swings and wear on components.
How much can I expect to save on my energy bills with a high-efficiency AC in Bristol’s climate?
Because Bristol experiences moderate summer temperatures but extended shoulder seasons, high-efficiency heat-pump air-conditioners can deliver year-round savings. Customers replacing a 10- to 15-year-old fixed-speed system typically see 25-40 % lower cooling costs and 15-30 % lower heating costs when using the heat-pump mode. For a semi-detached home with an average annual combined heating and cooling spend of £750, that can translate to £150–£250 in savings per year, paying back the efficiency premium in 4–7 years depending on usage.
Are there government incentives or local grants available in Bristol for installing high-efficiency air-conditioning or heat-pump systems?
Yes. Under the UK Boiler Upgrade Scheme (BUS), homeowners can currently receive a £5,000 grant toward the installation of an air-source heat pump that meets efficiency criteria. Bristol City Council also offers periodic Green Business Grants for SMEs upgrading to low-carbon heating and cooling technologies. Additionally, installing equipment with an A+++ energy label may qualify you for reduced VAT (0 % until March 2027 on eligible heat-pump systems) and improved EPC scores that add property value.
How do I determine the correct size and specification of a high-efficiency AC for my Bristol property?
Proper sizing starts with a heat-load calculation (sometimes called a Manual J), which factors in floor area, insulation levels, window orientation, occupancy, and airtightness. In Bristol’s temperate climate, oversizing is a common mistake that leads to short cycling and lower efficiency. Our surveyors take detailed measurements, run software simulations, and recommend units whose variable-speed range matches both peak and part-load conditions—usually 60–100 W/m² for cooling and 50–90 W/m² for heating. We also consider noise limits for terraced housing and advise on multi-room or ductless configurations where appropriate.
What maintenance does a high-efficiency heat-pump air-conditioner require to stay at peak performance?
Routine maintenance is straightforward but essential: 1) Clean or replace indoor air filters every 1–3 months. 2) Rinse outdoor coils once or twice a year to remove pollen and road grime. 3) Have a certified F-Gas engineer perform an annual service that checks refrigerant charge, electrical connections, condensate drains, and firmware updates. Keeping records maintains your manufacturer warranty (typically 5 years parts & labour when installed by an accredited contractor) and can preserve up to 10 % extra efficiency compared with neglected units.
How long does installation take and will it be disruptive?
A single-split high-efficiency system for one room usually installs in one day, while whole-home multi-split or ducted systems take 2–4 days depending on pipe runs and electrical upgrades. Our team schedules a pre-installation visit to plan outdoor-unit placement that meets Bristol Planning and Noise Regulations. We use low-profile trunking to conceal pipework and lay dust sheets in all work areas. Power and water are only isolated briefly, and most homeowners find they can stay in the property throughout the process with minimal disruption.