Heat Source Hub

Straight answers on heat pumps, grants and home heating.

Independent, honest guides for UK homeowners weighing up their next heating system. Start where it fits you:

See every option side by side, from new boilers to heat pumps.

See the real costs and savings side by side before you commit.

BUS, ECO4 and the Warm Homes Plan, compared so you don’t have to guess.

Not a typical homeowner?

Two situations that come with their own rules, deadlines and costs.

EPC rules, the 2030 deadline, and whether a heat pump is the cheapest route to compliance.

What the Future Homes Standard means for your heating from 2027 onwards.

Vaillant, Daikin, Mitsubishi and more, judged on reliability and running cost.

BUS vs ECO4 vs the Warm Homes Plan, compared with a decision flow.

Why your existing cylinder probably won’t work, and what will.

Why the same smart thermostat performs differently on each system.

The Boiler Upgrade Scheme is still running in 2026. Two minutes tells you if you qualify.

Best Smart Thermostats for Heat Pumps in 2026, and When You Are Better Off Without One
If you have a heat pump, or one is booked in, the thermostat choice matters more than it does with a gas boiler.
Replacing a Back Boiler: What Happens to the Fire, the Flue and the Hot Water
If your house has a gas fire in the living room with a boiler behind it, that fireplace is doing two jobs.
Do You Need a Buffer Tank With Your Heat Pump? How to Tell Before You Pay for One
If you have two heat pump quotes, one with a buffer tank and one without, the obvious question is which installer is right.
Will Your Solar Panels Run Your Heat Pump? What Self-Consumption Looks Like in a UK Year
Solar panels can supply part of a heat pump’s electricity, but not most of it over a full year.
How Loud Is a Heat Pump? Working Out the Noise Before It Reaches Your Neighbour’s Window
If you are asking how noisy a heat pump is, the honest answer is that it depends on the unit, where you put it and who is standing nearby.