Practical notes on heat pumps, rooftop solar, retrofit, and the small decisions that add up to a warmer, lower-carbon UK home.
After 35 years installing heat pumps across west London, I'm telling you straight: expect payback in years, not months — and why that's still worth it.
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Yes, heat pumps work in pre-1930s homes — but you need bigger radiators, decent insulation, and a properly-sized system. Here is what actually matters.
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A typical UK home spends £900-£1,400 a year running a heat pump — usually less than gas, much less than oil. Here is what drives the bill.
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Modern heat pumps run at 40-50 dB at 1m — quieter than a fridge. Permitted-development rules cap noise at the neighbour boundary. Here is what to expect.
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Combining solar with a heat pump cuts running costs by 30-50% in most UK homes. Here is when the maths works — and when to install one before the other.
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Air source heat pumps suit 95% of UK homes. Ground source pays back faster but needs land or a borehole. Here is how to choose without overspending.
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Heat-pump tariffs cut your running cost by 30-50% versus standard variable. Here is which tariff suits which household, with real numbers.
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Heat pumps in flats are possible but tricky. Freeholder consent, balcony siting, communal systems — here is what is realistic in 2026.
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New-build gas boilers are banned in 2025-2027 in most UK regions. Replacement bans for existing homes are softer than the headlines suggest. Here is the real timeline.
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Loft and cavity wall insulation are required for the BUS grant. Solid wall insulation is not — but worth doing if you have it. Here is the realistic order.
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SEG pays you for every kWh you export from your solar panels. Rates run 1p-15p/kWh depending on supplier — here is how to pick a tariff that pays.
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