The first step is to estimate the property’s heat requirement, usually measured in kilowatts by evaluating property size, insulation quality, number of radiators and hot water demand.

It sets out how gas appliances, fittings, and flues must be installed, maintained, and used safely. Only Gas Safe registered engineers can legally work on gas appliances and fittings

We make sure installations are carried out to manufacturer’s instructions and industry standards. Engineers perform tightness tests and combustion checks during commissioning.

Flues and ventilation must be correctly sized, positioned, and terminated as instructed by manufacturer and industry standards.

Yes, we are trained by the Gas Safe and registered to deal with all sort of boilers and air source heat pumps systems in UK.

Yes, we are qulified technicians and registered with licence issued be Gas Safe 0800 408 5500 and Qualification Certification by the LCL. If you wish to know more, you can write to us at info@nationalheatsource.uk

Balancing a heating system ensures even heat distribution throughout all radiators, improves efficiency, and prevents cold spots, even when the boiler and system are working correctly.
When water is pumped around a central heating system, it takes the path of least resistance, meaning radiators nearest the boiler get more hot water, and those furthest away stay cooler.

Balancing adjusts each radiator’s lockshield valve to equalize flow rates, so every radiator heats up evenly.

We are an independent private business dealing with boiler replacement and upgrade paid by the customers. We do not deal with any grants.