Guide library
Heat pump guides
Direct answers on costs, grants, running bills and choosing an installer — every figure sourced and dated.
Start here
Core guides
- Air source heat pump costInstalled prices by property size, what the quote includes, and the price after the grant.Read guide →
- Ground source heat pump costBorehole vs trench costs, why groundworks dominate the price, and when it pays back.Read guide →
- Heat pump running costsWhat a heat pump costs to run per year at current UK electricity prices.Read guide →
- Boiler Upgrade Scheme eligibilityWho qualifies for the £7,500 grant in England and Wales, and what disqualifies you.Read guide →
- Home Energy Scotland grant & loanThe Scottish grant plus interest-free loan, and the order you must apply in.Read guide →
- Heat pump for a 3-bed semiTypical sizing, cost and running bills for the most common UK house type.Read guide →
- Heat pump for a 4-bed detachedBigger heat loss, bigger unit — what changes in the quote and the bills.Read guide →
- Do I need new radiators?When existing radiators work at lower flow temperatures, and when they do not.Read guide →
- Heat pump noise & UK rulesPermitted development noise limits, boundary distances and how loud units really are.Read guide →
Costs
Costs
- Heat pump cost per kW in the UKA quick way to check whether a quote is fair before you compare installers.Read guide →
- Heat pump cost for a bungalowBungalows are often the easiest heat pump retrofit in the UK — and among the cheapest.Read guide →
- Heat pump cost for a 2-bed flatFlats are the cheapest properties to heat — and the fiddliest to get consent for.Read guide →
- Cost to replace a gas boiler with a heat pumpWhat changes, what stays, and what the swap actually costs after the grant.Read guide →
- Hybrid heat pump costKeeping the boiler alongside a heat pump is cheaper up front — with one big catch.Read guide →
- Heat pump hot water cylinder costThe component most often missing from a suspiciously cheap quote.Read guide →
- Underfloor heating vs radiators for a heat pumpLower flow temperature means lower bills — but retrofitting underfloor rarely pays back.Read guide →
- Air-to-air heat pump costThe cheapest heat pump to install, with two significant trade-offs.Read guide →
Running costs
Running costs
- How much electricity does a heat pump use per year?The number your energy supplier will actually bill you for.Read guide →
- Heat pump vs gas boiler running costsThe honest comparison, including the cases where gas is still cheaper.Read guide →
- Heat pump electricity tariffs in the UKThe single biggest lever on your running cost after system design.Read guide →
- Do heat pumps work in cold weather in the UK?The most common objection — and what the design temperature data actually says.Read guide →
Grants & eligibility
Grants & eligibility
- Boiler Upgrade Scheme for landlordsYes, rented property qualifies — with conditions worth reading before you commit.Read guide →
- Heat pumps and grants for listed buildingsThe grant is available. The consent process is the real hurdle.Read guide →
- ECO4 heat pump grantsThe scheme that can cover the whole install — if you qualify.Read guide →
- Heat pump grants in WalesTwo routes: the UK-wide grant, and the Welsh Government fuel poverty scheme.Read guide →
- Heat pump grants in Northern IrelandThe rules are genuinely different here — plan the budget accordingly.Read guide →
Buying decisions
Buying decisions
- What is SCOP on a heat pump?The one number that decides whether your bills go up or down.Read guide →
- MCS certification explainedWhat the badge actually guarantees — and what it does not.Read guide →
- Questions to ask a heat pump installerUse these on every quote you receive. The answers vary more than the prices.Read guide →
- What happens in a heat pump surveyThe visit that determines your running costs for the next twenty years.Read guide →
- How long does a heat pump installation take?Days on site, weeks end to end — here is where the time actually goes.Read guide →
- Do you need planning permission for a heat pump?Usually not — but the exceptions catch a lot of households out.Read guide →
Problems & troubleshooting
Problems & troubleshooting
- Heat pump not heating the house enoughSix causes, in the order they are worth checking.Read guide →
- Heat pump defrost cycles explainedThe steam cloud that makes people think their heat pump is broken.Read guide →
- Radiator sizing for heat pumpsWhy the same radiator gives you less heat on a heat pump — and what to change.Read guide →
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