Renewable Heating Introduction

An introduction to Renewable Heating

The UK has one of the most ambitious CO2 emission reduction targets in the world. The installation of an efficient heating system is an effective way of reducing household energy bills and CO2 emissions, as domestic heating accounts for 14% of the UK’s CO2 emissions.

Not only is there are drive to install more renewable heating systems to improve our environment, the Government have introduced some fantastic financial incentives for homeowners to now make it a financially viable option for all.

So if you are looking at improving the heating for your home and are looking for a green alternative, we can help reduce your emissions, and your fuel bills today.

Option 1: Hybrid Heat Pumps

Perfect if you currently have a combination boiler.

The great thing about a Hybrid Heat Pump (HHP) is that you get the best of both worlds, a really efficient gas condensing boiler with a really efficient Air Source Heat Pump.

It’s smart hybrid logic automatically selects the most energy-efficient and cost-effective operation based on your energy tariff, both working in harmony to give you the most cost effective solution, reducing your energy bills using green energy and all supported by the Governments Green Homes Grant Scheme.

The Hybrid Heat Pump is made up of 2 units, one outside – the Air Source Heat Pump, and one inside – the Gas Boiler. The Air Source Heat Pump takes the base load and runs when it is most cost effective to do so, at about 12°C. Then in cooler seasons, at about 1°C, they both operate together, the Gas Boiler working simultaneously with the Air Source Heat Pump (the Hybrid mode). Finally, when it gets really cold, about -10°C, the Gas Boiler takes on all the heating and hot water.

How does a Hybrid Heat Pump work?

Six steps to how they work:

  1. Energy is taken from the air and transferred to the heat pump
  2. Electrical energy is sourced from the national grid. This is used to operate the heat pump but with low consumption.
  3. The energy from the air is transferred to the refrigerant inside the heat pumps evaporator. The temperature of the refrigerant rises and changes state from liquid to gas.
  4. The refrigerant gas is then compressed causing its temperature to rise significantly
  5. A heat exchanger then extracts the heat energy from the hot refrigerant to heat water for heating or hot water.
  6. The refrigerant turns back into a liquid and is able to absorb energy from the air and the cycle begins again.

There is a video explaining the Daikin Hybrid Heat Pump here:

The beauty of heat pumps is that they are extremely efficient, require very little maintenance and have a manufacturer’s confirmed life expectancy of 20 years. Air Source Heat Pumps are discreet and compact and the Hybrid (the Air Source Heat Pump and the Gas Boiler) can be installed in a day. Air Source Heat Pumps, and Hybrid Heat Pumps, can be installed in existing properties as well as new builds and business/community premises and are capable of providing heating and hot water all year round.

Option 2: Solar Thermal?

The best choice for customers with a hot water tank

Put simply, solar thermal panel technology is an alternative, eco-friendly method of heating water in your house. They will save you money on your gas bills, and make your home a lot greener. And, the great news is, unlike solar PV (which generates electricity) where you might need lots of panels, Solar Thermal only needs one.

In this detailed guide, we’ll explain how solar thermal panels work and why we recommend them. We’ll also include how you can save money and energy by having them installed!

In addition, we have an exciting new offer for solar thermal panels that works in conjunction with the new Government Green Homes Grant. This means you can make your home greener and save money with financing from the government – it’s win-win!

What are solar thermal panels?

As mentioned above, solar thermal panels are a method of heating the water in your home, using energy generated from sunlight. Sometimes called Solar Thermal Collectors or Solar Water Heating. They are fitted to your home’s roof and use the sun’s energy to heat your water through a connection with your boiler. They are very popular in Europe, so you may have seen them whilst on holiday.

In the UK, we have two types of solar thermal collectors: Flat Plates and Evacuated Tubes. These names refer to how the water interacts with the panels. You can see the 2 different types here:

Flat Plate


Flat Plate solar thermal collectors look a bit like solar PV panels and can be fitted individually or in pairs. Instead of using lots of thin tubes like an evacuated tube panel, it’s actually made up of an absorbing surface, a heat insulated back and a see through cover. It uses a fluid to carry the heat from the panel to the hot water tank. This is how the water is heated.

Evacuated Tubes


This type of solar thermal collector is made up of many thin tubes that carry transfer fluid, which is used to heat the water. These systems, overall, are very efficient but are not so efficient in warmer months because they risk overheating. These are the type of panels that you may have seen on buildings if you’ve been on holiday to Greece, Turkey or Spain as they’re very popular in those countries. However, they aren’t as popular in the UK as they’re not so aesthetically pleasing.

Find out more today

The government are offering grants of either £5,000 or £10,000 towards the cost of a new renewable heating system. We are an accredited Trustmark installer that can help you take advantage of the grants that are on offer.

So why not find out if you qualify for a grant today?