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Renewable - Solar Thermal, Heat Pumps (Air/Ground), Rain Water Harvesting
Solar Thermal is similar to Solar Energy / PV but instead of converting energy to electricity, solar thermal converts into heat, heating up water for domestic taps and central heating. The ‘collectors’ (commonly known as panels) are positioned on the roof and work in cold climate, overcast and windy weather.
Two main types of panels are Flat-Plate Collectors (better for summer as don’t risk overheating) or Evacuated Tube Collectors (more efficient for colder climates). Before investing check on the amount of light the collector receives and how much of that can be converted to heat. Take note of the durability as a lot of brands offer up to a 25yr warranty.
Vaillant AuroTherm 145V 1 panel in roof portrait solar pack
An Air Source Heat Pump is set up outside and relies on drawing heat from the air, heating a liquid, then the pump compresses the liquid to increase its temperature, condensing back into a liquid releasing stored heat which is then used to heat the central heating water or domestic water.
Air Heat Pumps work best with a well insulated home and a home with underfloor heating. If a radiator system, ensure you have large radiators because the heat generated is less than heat from a conventional boiler so a wider surface is needed to reach a comfortable temperature in the home.
Samsung Premium Air Source Heat Pump
A Ground Source Heat Pump is buried into the ground where underground temperatures remain constant year round because the earth absorbs energy from the sun. The ground source pump then absorbs the energy from the earth and transports it to your home.
Ground Source Pumps come as either an Open Loop System (extracts groundwater which passes through a heat pump capturing heat) or a Closed Loop System (drawing in heat from the ground to a circuit of piping connected to the indoor heat pump). Closed Loop Systems have an option of being laid horizontal or a more expensive but less space needed, vertical option.
Warmflow GSHP ground source variable speed heat pump 2.5-10kW
Rain Water Harvesting is collecting and storing water that would normally be lost flowing down the gutters draining away into the ground. Storing rain water can be used to water the garden, clean patios and cars as well as pumped indoors to flush toilets and used in washing machines.
Choose a tank size suitable for the amount of people in the home. Check if the roof of your home is suitable for collecting water and if you have trees near any gutters, fit leaf guards. Important for the tank to have a one-way flow to prevent a back flow of water. High quality filters ensure as much debris as possible is removed. Have an automatic system to switch to mains water when the rainwater runs low.
|Location in UK||Hourly Rate||Daily Rate|
|Heating Engineer in London||£53||£277|
|Heating Engineer in Birmingham||£38||£232|
|Heating Engineer in Leeds||£35||£215|
|Heating Engineer in Glasgow||£38||£252|
|Heating Engineer in Sheffield||£33||£221|
|Heating Engineer in Bradford||£34||£222|
|Heating Engineer in Liverpool||£36||£223|
|Heating Engineer in Edinburgh||£37||£248|
|Heating Engineer in Manchester||£36||£226|
|Heating Engineer in Bristol||£36||£239|