Detailed Design and Heat Loss
The Government have put in place the MCS (Microgeneration Certification Scheme) which protects customers by ensuring that there is a very rigorous process in place for the system design.
In order that a detailed design and specification for your system is produced, we will do comprehensive heat loss calculations.
These design calculations take into account the size and construction of each room.
The amount of insulation in the walls, floors and ceilings, doors and windows, as well as a room design temperature and ventilation rate are all factors which are taken into consideration.
These room by room calculations are then combined to produce the total heat loss for the entire property.
This is used to accurately determine the size of the heat pump and the specification of the radiators/ underfloor heating pipework in the heat emitter system.
It can be seen how important it is to get these calculations right before specifying the appropriate heat pump but also to ensure effective heating for a comfortable warm building.
How am I assured that the design is correct and accurate?
It is essential that your heat loss calculations are performed by an MCS accredited company, as they are audited on an annual basis to ensure that these standards are being maintained.
We take pride in the fact that all of our heat pump installations have been fitted in accordance with the MCS design criteria.
No law exists which mandates MCS accreditation for a heat pump installation and before the Renewable Heat Incentive (RHI) scheme was launched many heat pump systems were designed and installed where, to save time and money, merely crude heat loss calculations had been performed.
However, many of these systems costed considerably more to run than the customer was initially led to believe; hence the short term savings from installing such systems were massively outweighed by the increased running costs.
What if I already have an EPC?
You may already have an Energy Performance Certificate (EPC) for your property which may show a heat loss calculation, performed to the regulated standards.
However it will not be sufficiently detailed to be able to base a detailed system design on.
Generating an EPC takes far less time than completing MCS heat loss calculations, and it is likely that the EPC will underestimate the actual heat requirements of your building.
If your design is not MCS compliant then your system will not qualify for Renewable Heat Incentive (RHI) payments.
The MCS rules require that we follow the MCS standards for the heat loss calculation and system design for any system that will be MCS compliant.
How Much Does A Detailed Design Cost?
We provide the MCS heat loss calculations, detailed design and quotation free of charge for customers that proceed with the installation.
If you choose not to proceed with the installation from Grant Heating then we will retrospectively charge £99.99 (excluding VAT) for this design work to cover for our skill and time spent preparing it.