APS Energy Solutions can provide heat pump advice on how a heat pump works and best installation practice, including top tips for self builds and renovations. For a good ground source heat pump installation on a new build property, insulation is key.
For renovation projects in particular, the better insulated your home the more efficient it is to heat, which means smaller energy bills. Your home’s efficiency will also impact the size of the heating system you require – the lower your heat demand, the smaller and cheaper the heating system, and the less work it needs to do, which all in all means a far cheaper to run home.
Insulation is the single most important aspect of any building. It is the easiest way to reduce any buildings heating costs and as energy prices spiral, fitting good quality insulation will save energy, reduce fuel bills and reduce carbon emissions.
Reach for the stars
Sizing it right
In in order that an accurate ground source heat pump sizing can be determined all properties, regardless of the insulation levels, will need a full MCS heat loss calculation.
For this process at APS Energy Solutions costs around £150 – £200. If a heat pump is too small then the running costs will increase, too large and the heat pump could cycle on and off.
Our MCS service includes a full MCS heat loss calculation.
Can't insulate? Go bi-valent
If there is no opportunity to improve the fabric insulation of the building a supplementary heat source could be used. This is known as a bi-valent installation, (or bi-vailent as it can be spelt), where the existing boiler is retained to meet the peak demand of the building at the coldest times.
As the boiler operates at a higher flow temperature, when in operation it will take the full load of the property effectively holding off the heat pump until it is capable of providing the level of comfort required.
This can be done manually through time clocks or a more sophisticated automated system could be employed using external thermostats.
Bi-valent installations can be effective, however a great deal of consideration needs to be given to the value of installing the heat pump in un-insulated buildings due to the capital cost involved, considering the running cost savings are likely to be marginal and the system performance may decrease in comparison to the existing boiler system due to the lower flow temperatures in the radiators.
Working with radiators
To understand what the maximum output of the radiators are at the reduced temperature and whether they are large enough.
Things to note:
- Off peak tariffs cannot generally be fully utilised as radiators do not have any storage capabilities.
APS Energy Solutions are approved partners of Kensa with full MCS accreditation