Utilise Exhaust Air Heat Pumps For Water & Space Heating
Purchase an exhaust air heat pump from Effective Home, and you'll benefit from the following:
- water and space heating without no need for a 'wet' heating system
- make the most of 'waste air' in your home to heat it
- better air quality in your home as stale air is used and replaced with fresh air
Exhaust Air Heat Pump Options
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Exhaust Air Heat Pumps
What Are Exhaust Air Heat Pumps?
Exhaust air heat pumps work a little differently to an air source heat pump – chiefly in the way they provide space heating without needing radiators, underfloor heating and the like. Instead, it transfers heat from ventilation systems to warm your home. A mechanical ventilation heat recovery (MVHR) unit extracts heat from stale air in your home which is further heated and then released via ducts into the home to maintain a comfortable temperature.
The air heat that’s collected and heated still further can also be transferred to a hot water cylinder to store and provide hot water in your home. The installation of an exhaust air heat pump makes most sense during the development stage of a home, as it can then be factored in from the start, removing the need for radiators and underfloor heating from being installed and saving money in the process.
Exhaust Air Heat Pump Set Up Options
Exhaust air heat pumps work in two ways as both air to air and air to water systems, meaning you get them both in one. Heat energy in these systems work with heating both space and water using a heat exchanger.
Air to air heat pumps require the use of a mechanical ventilation system known as a mechanical ventilation heat recovery system which extracts heat from stale air and then uses it in the home for heating. Air to water uses a heat exchanger to transfer heat to a hot water cylinder which can then store and heat water effectively.
By making use of both, you constantly cycle through air in your home, heating up fresh incoming air and domestic hot water using the heat from the old air in your home. The supply air being heated in this manner makes exhaust air heat pumps much more energy efficient than conventional heating systems using a gas boiler and radiators.
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When Is An Exhaust Air Heat Pump The Better Option Vs Air Source Heat Pumps?
The main benefit of exhaust air heat pumps is that it’s a single unit that’s capable of heating, hot water and ventilation. If you need all three in your home, then an exhaust air heat pump is the better option as air source heat pumps can only provide space heating and hot water, without heat recovery ventilation in the same way as exhaust air heat pumps.
Exhaust air heat pumps are also the preferred choice if your energy demands are quite low and you have low heating needs. Air source heat pumps are great at meeting high energy demands but down sizing is not their forte. The smallest systems, around 5kW, would be far too powerful for a small, low demand home. But exhaust air heat pumps can help you there.
On the flip side, if you have a high energy property and good ventilation already, then an air source heat pump would be the better choice so it all just depends on your circumstances. If you’re unsure, our free home survey will help you determine which is best according to your energy needs and home.
The Benefits Of Exhaust Air Heat Pumps
Reduces Carbon Emissions
Future Proofs Your Property
Powers Home With Green Energy
Why Choose Effective Home
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Can An Exhaust Air Heat Pump Meet All My Heating Needs?
Well, that depends largely on your heating needs. An exhaust air heating system is excellent when there are low energy demands in the home – which could well be the case in a 1 bedroom home with a single occupant. However, when energy demands are higher and the heating demand is up, this type of heat pump won’t cut it. How suitable an exhaust air heat pump is will depend on three main factors.
First, the size of your home. The smaller the better. Second, how airtight your home is. The more insulation your home benefits from, and the fewer draughts, the more suitable your home will be for an exhaust heat pump. The final thing to consider is how much hot water you use and how often. Heating water using this method can be time consuming, so if you have a lot of hot water demand then this might not meet your needs either.
To really tell if an exhaust air heat pump is for you, our team can carry out a thorough survey to assess your requirements and help you decide what’s best.
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Exhaust Air Heat Pumps FAQs
How much do exhaust air heat pumps cost to run?
Knowing exactly how much it will cost to run your exhaust air heat pump is difficult because three changing factors can influence a heat pump’s efficiency and therefore running costs:
- temperature of the outside air (and how much heating is required to get it to the right temperature for your home)
- your heating and hot water needs
- how air tight the home is
These factors will affect overall running costs, but as an EPVS certified member we can provide an accurate, independently verified estimate based on your home to help you decide if they’re worth installing at your home.
Will I save money with exhaust air units?
Again, this depends on how much it costs to run, but generally yes you will make savings with an exhaust air heat pump vs a traditional gas boiler as you won’t need to spend money buying gas from an energy supplier to heat your home.
Instead you can rely on the residual heat in the stale air to then be heated further with fresh air to provide heat for your home. Essentially the heat is already there, so you won’t need to pay for it. The running costs are sure to be lower than the cost of purchasing energy from your supplier.