Heating, Energy & Eco
398 sources in the library on heating, energy & eco, 40 on this page cited in a published note. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 4 of 10.
- fair RN-F75XBG cited
Energy Saving Trust
The Energy Saving Trust's lighting guide says replacing the remaining halogen spotlights in a home with LED bulbs saves about £45 a year in Great Britain.
Cited in Home Energy Audit: DIY Steps.
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Energy Saving Trust
The Energy Saving Trust's published fuel price assumptions for Great Britain, including the average off-peak Economy 7 electricity price of 14.4p/kWh used in its savings figures.
Cited in Air Source Heat Pumps: Cost, Grants & Is It Worth It, Gas vs Electric vs Heat Pump Running Costs.
- fair RN-HYQVG1 cited
Energy Saving Trust
The Energy Saving Trust's quick tips put the saving from washing at 30°C and running the machine once less a week at £26 a year in Great Britain.
Cited in Home Energy Audit: DIY Steps.
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Energy Saving Trust
A costed micro measure. Radiator foil panels cost around £25 for a roll from a DIY store, cut to size to fit snugly behind the radiator. Fitted to radiators on uninsulated external walls they save £18 a year in Great Britain or £20 in Northern Ireland, and cut carbon by 60kg a year in GB or 110kg in NI. Last updated 31 October 2025.
Cited in Radiator Covers: Cost, Heat Loss & Ideas.
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Energy Saving Trust
The Energy Saving Trust's consumer guide to loft insulation. Its cost table gives about £750 to install 270mm from nothing and £600 to top up from 120mm in Great Britain.
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Energy Saving Trust
Energy Saving Trust solar PV guidance: a typical domestic system is about 4.5 kWp and costs around £7,600 installed.
Cited in EPC Ratings Explained & How to Improve Yours, Solar Panels for Your Home: Cost & Payback (2026).
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Energy Saving Trust
Solar thermal performance and cost. Hot water accounts for around 11% of the average energy bill. A typical installed system costs around £5,300. Output is seasonal: roughly 90% of hot water demand in summer falling to around 25% in winter, averaging about half of annual hot water needs, so the system is always paired with a conventional boiler or immersion heater. Installation by an MCS certified contractor brings both workmanship and product warranties, typically several years on workmanship and longer on the collectors themselves. Maintenance requires a thorough check every five years to flush the system and replace the fluid mix. Last updated 20 May 2026.
Cited in Hot Water Options for Your Home.
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Energy Systems Catapult, for the Department for Energy Security and Net Zero
The summary report of the DESNZ-funded field trial of about 750 UK heat pumps; it gives the measured median seasonal performance factor of air source heat pumps (2.78, interquartile range 2.55 to 3.05).
- fair RN-BIY7MZ cited
Environment Agency (hosted by Waterwise)
The Environment Agency's 2010 guide to domestic rainwater harvesting. Its case studies found 40 to 50 per cent reductions in mains water use against homes without a system.
Cited in Rainwater Harvesting Systems.
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Heat Pump Association
The Heat Pump Association's summary of the DESNZ-funded Electrification of Heat trial of 742 heat pumps. It settles the measured average ASHP efficiency of 293% against 84% for a typical fossil fuel system.
Cited in Air Source Heat Pumps: Cost, Grants & Is It Worth It, Underfloor Heating: Costs, Types & Is It Worth It?.
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Home Energy Scotland (funded by the Scottish Government)
Home Energy Scotland's page on Warmer Homes Scotland, the government-funded advice service's own description. It explains who qualifies, that Warmworks does the work and that costs are usually met in full.
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Nottingham Energy Partnership
Monthly domestic fuel cost comparison from an energy advice charity; for September 2026 it gives kiln-dried logs at 37.26p per kg, 4.09 kWh/kg and 10.73p per kWh of heat at 85% efficiency.
Cited in Multi-Fuel Stoves vs Wood Burners.
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Thames Water
Thames Water's page for metered household customers, giving the 2026–27 volumetric charges for clean water and wastewater per cubic metre.
Cited in Rainwater Harvesting Systems.
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Which?
Which? consumer guide to cavity wall insulation. It states that homes built from 1920 onwards are likely to have cavity walls.
Cited in Home Energy Audit: DIY Steps.
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Which?
Which? guide to boiler and associated installation costs; it gives the cost range and average for a power flush of a five-radiator heating system.
Cited in Combi vs System vs Regular Boilers, How to Restore Radiator.
- fair RN-W2ZADF cited
Which?
Which? consumer guide to storage heaters. It gives typical purchase prices (basic models under £400, advanced ones upwards of £700) and the electrician's labour for a replacement on existing wiring.
Cited in Electric Heating Options Compared, Storage Heaters: Modern Options.
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Which?
Which? heating advice. It recommends a 60–65°C flow temperature so a condensing boiler condenses, and cites Nesta research on turning combi flow temperature down from 80°C.
Cited in Home Energy Audit: DIY Steps.
- supplier figure RN-3MODC3 cited
AkzoNobel (Dulux Trade)
Maker's product page for Hammerite radiator paint; it states the paint is formulated for a heat-resistant finish on domestic radiators and lists resistance to yellowing.
Cited in How to Restore Radiator.
- supplier figure RN-TTJPSD cited
B&Q
B&Q marketplace product page for a flatpack slatted MDF radiator cover 112 cm wide and 19 cm deep, listed at £54.99.
Cited in Radiator Covers: Cost, Heat Loss & Ideas.
- supplier figure RN-NDMAKI cited
B&Q
B&Q product page for its own MDF Cambridge radiator cover, 1,710 mm wide and 200 mm deep, for radiators up to 1,617 mm wide, priced at £109.
Cited in Radiator Covers: Cost, Heat Loss & Ideas.
- supplier figure RN-LXLX3T cited
B&Q
B&Q product page for a 350W white wall-mounted infrared panel priced at £82.99 including VAT, the low end of the budget white panel band.
Cited in Infrared Heating Panels: Worth It?.
- supplier figure RN-6NJ81U cited
British Gas
British Gas's SEG page, updated August 2026: Export Premium 12p/kWh for its electricity customers with systems up to 15 kW, and Export SEG at 3p/kWh for non-customers.
- supplier figure RN-YCI3RW cited
City Plumbing
A builders' and plumbers' merchant product page for one high heat retention storage heater, the 1 kW Dimplex Quantum QM100RF. It shows the supply-only price including VAT.
Cited in Storage Heaters: Modern Options.
- supplier figure RN-P144ER cited
Discrete Heat
The maker's cost guide for ThermaSkirt. It prices a complete supplied room kit at £350 to £1,200 including VAT, with installer labour extra.
- supplier figure RN-POISK4 cited
Discrete Heat
The maker's product page for ThermaSkirt H2O wet skirting heating. It describes the product as a 20 mm aluminium radiant panel without convector fins, and lists its profile heights.
- supplier figure RN-W5UWU7 cited
E.ON Next
E.ON Next's SEG page lists Next Export Exclusive at 13p/kWh fixed for its import customers and Next Flex Export at a variable 6p/kWh open to other customers.
- supplier figure RN-KJQS90 cited
EDF
EDF's SEG page: SEG Export Variable at 3.0p/kWh open to anyone, 5.6p/kWh variable for EDF customers, and 13p/kWh fixed for existing EDF electricity customers.
- supplier figure RN-9EZ4FX cited
Gledhill
Gledhill's homeowner advice page: all its unvented cylinders carry a 25-year manufacturer's warranty, and the cylinder must be serviced each year to keep the warranty valid.
Cited in Hot Water Cylinders: Vented vs Unvented.
- supplier figure RN-FC3ZIX cited
Glen Dimplex Heating and Ventilation
The maker's installation and operating instructions for the Dimplex Quantum high heat retention storage heater range. It gives each model's charging input rating and states the heaters must be hardwired, not plugged in.
Cited in Storage Heaters: Modern Options.
- supplier figure RN-RK4M51 cited
Google Nest Help
Google's help page for the Nest Heat Link. It says every Nest thermostat sold in Europe comes with a Heat Link that connects to the heating system, so a hub-free install is not possible.
Cited in Smart Heating & Zoning.
- supplier figure RN-U6GVKL cited
Google Nest Help
Google's help page on OpenTherm. It names the Nest thermostat models that support OpenTherm modulating control of a boiler.
Cited in Smart Heating & Zoning.
- supplier figure RN-5V98H2 cited
H+H UK
Celcon Solar Grade aircrete block. Compressive strength 2.9 N/mm2, thermal conductivity 0.11 W/mK, dry density 460 kg/m3. This is the lowest lambda block in the Celcon range and is the one specified where the inner leaf has to carry the U-value. Page links the Solar Grade 2023 datasheet, the Celcon Blocks 2023 datasheet and pack information.
- supplier figure RN-YHTQW5 cited
Heatrae Sadia
Manufacturer data for the Megaflo Eco indirect unvented cylinder. Nominal capacities are 70, 125, 145, 170, 210, 250 and 300 litres. Insulation is 60mm thick on every size. The immersion heater is 1 x 3 kW on all sizes. Empty weights are 25, 31, 35, 39, 43, 50 and 58 kg, but full weights are 125, 180, 204, 233, 253, 300 and 358 kg, which is the figure that decides whether a floor or an airing cupboard base can take it. Standing heat loss runs 332.15 kWh/year at 70 litres up to 616.85 kWh/year at 300 litres, so an oversized cylinder is a permanent standing cost. Maximum flow at 3 bar is 76 l/min across the range. The cylinder has an insulated temperature and pressure relief valve.
Cited in Boiler Replacement & Central Heating Costs (UK), Combi vs System vs Regular Boilers, Hot Water Cylinders: Vented vs Unvented.
- supplier figure RN-BCBKZG cited
Heatrae Sadia
Heatrae Sadia's warranty page: Megaflo Eco unvented cylinders have a lifetime warranty for domestic installations, conditional on an annual service carried out to the installation instructions.
Cited in Hot Water Cylinders: Vented vs Unvented.
- supplier figure RN-2U4I1C cited
Hive
Hive's product page for its smart radiator valve. It says the valve fits a compatible TRV valve body and ships with M30, M28 and Danfoss RA adaptors, so the valve body stays in place.
Cited in Smart Heating & Zoning.
- supplier figure RN-QGKAH6 cited
Mira Showers
Shower manufacturer's guide to domestic water pressure. It states that one bar equals about 10 metres of head, which sets the pressure a gravity system can deliver.
Cited in Choosing Bathroom Taps & Brassware, Combi vs System vs Regular Boilers.
- supplier figure RN-0IX617 cited
Myson
Myson's product article on its Ulow-E2 heat pump radiator. The maker states that in-built fans give forced convection and heat outputs up to 60% more than traditional radiators.
- supplier figure RN-XRSYGC cited
Octopus Energy
The supplier's own page for its heat pump tariff. It sets out three cheap periods totalling eight hours a day at 51% below the regional day rate, and a 4pm to 7pm peak 50% above it.
- supplier figure RN-A3XE6F cited
Octopus Energy
The supplier's page for its EV smart-charging tariff. It states the off-peak smart charging rate of 7.6p per kWh; the rate is only published by the supplier.
- supplier figure RN-VUC5G5 cited
Octopus Energy
Octopus Energy's export tariff page: Outgoing Octopus pays a flat 12p/kWh and requires being an Octopus customer, while Agile Outgoing follows day-ahead wholesale prices.