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How does underfloor heating work? Your questions answered

Posted by NicoleYouGen on 24 May 2013 at 9:52 am

How does underfloor heating work? Your questions answered

What is underfloor heating? Underfloor heating can be either a system that pumps warm water through piping under the floor (a ‘wet’ system) or electric coils placed under the floor (a ‘dry’ system). Taking advantage of the basic principle that heat rises, warmth from u…

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What happens to the FIT if your solar panels are destroyed in a fire?

Posted by Cathy Debenham on 23 May 2013 at 9:48 am

What happens to the FIT if your solar panels are destroyed in a fire?

Q: We fitted  a 3.2kw solar panel system in August 2011 were on the higher levy (feed-in tariff rate). We had a house fire in March 2012 and rebuilt the house putting a complete new system on it. We notified British Gas, who we signed up with about the fire and they said notify them when we …

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How free biomass boiler deals may lose businesses £23k a year

Posted by Amanda Hobbins on 21 May 2013 at 10:37 am

How free biomass boiler deals may lose businesses £23k a year

Companies offering free biomass boilers to replace your oil- or LPG-fired boiler take the Government’s Non-Domestic RHI tariff payments instead of up-front payment for the installation. This is fine if you really can’t afford to buy your biomass boiler yourself, and you’ll still…

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DECC doubles upfront grants for renewable heat technologies

Posted by Cathy Debenham on 20 May 2013 at 3:32 pm

More help with the upfront cost of installing renewable heat is now available as the Department of Energy and Climate Change announces a doubling of the Renewable Heat Premium Payments. These money off vouchers have been increased to: £2,300 for ground source heat pumps £2,0…

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Will solar PV power my underfloor heating?

Posted by Paul Hutchens on 20 May 2013 at 9:29 am

Will solar PV power my underfloor heating?

Q: We are having a 4kW solar pv system fitted. We are also considering electrical underfloor heating. After reading some very interesting pages on your site I am beginning to wonder if electrical underfloor heating is the best option as this will mainly run when it is dark? Is my thinking flawed …

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How do I find the best performing heat pump?

Posted by Cathy Debenham on 17 May 2013 at 9:35 am

How do I find the best performing heat pump?

Q: There is a great deal of information on the Internet as regards heat pumps but no information about recommended manufacturers of ground source heat pumps. Please can you help me. I would like someone to recommend which ground source heat pump ie Kensa, Nibe Danfoss performs best. A: Good q…

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Old House Eco Handbook: a review

Posted by Cathy Debenham on 16 May 2013 at 11:15 am

Old House Eco Handbook: a review

Old houses can be green. This is the title of the first chapter of Old House Eco Handbook: a practical guide to retrofitting for energy-efficiency & sustainability by Marianne Suhr & Roger Hunt. It's an encouraging start, as not everyone believes it's possible, and as a result too…

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Who deals with claims on an inverter warranty?

Posted by Cathy Debenham on 14 May 2013 at 10:52 am

Who deals with claims on an inverter warranty?

Q:I have a quote for the installation of solar panels. The quote says that the inverter is guaranteed for 10 years and that the guarantee is directly with the manufacturer; ie the installer does not wish to be involved in any guarantee claims. Is this normal? Is this contrary to the Sale of Goods…

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How voltage affects solar PV

Posted by James Page on 13 May 2013 at 9:40 am

How voltage affects solar PV

As most people will know mains voltage in the UK is  - nominally - 230V (it was 240V until we compromised with the European 220V supply).  But why does it change in both time and place even within mainland Britain? The answer to both stems from Ohm’s law. The voltage drop in t…

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Feed-in tariff rates for solar PV to fall by 3.5% from 1 July 2013

Posted by Cathy Debenham on 9 May 2013 at 12:25 pm

Feed-in tariff rates for solar PV to fall by 3.5% from 1 July 2013

Feed-in tariff rates for all solar PV installations under 50kWp will fall by 3.5% from 1 July, even though the  levels of installation to trigger a fall has not been reached. Under the government's rules the three monthly degression can be skipped for two quarters if uptake is low, after…

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Small energy companies reluctant to offer Green Deal finance

Posted by NicoleYouGen on 8 May 2013 at 9:12 am

Small energy companies reluctant to offer Green Deal finance

If you are with a smaller energy supplier, you may have to switch companies in order to get Green Deal finance through your bill. Some smaller suppliers are signed up, but some are strongly against the Green Deal, while others are waiting to see how it goes before taking part. So which compan…

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Heat pumps a no brainer says property developer

Posted by Cathy Debenham on 7 May 2013 at 9:41 am

Heat pumps a no brainer says property developer

A property developer in North Wales has been so impressed with the amount of energy that air source heat pumps have saved his properties over the past few years that he installed one in his own home in Colwyn Bay. "I first started using ground and air source heat pumps in my development…

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Building Control regulations for solar installations in Northern Ireland

Posted by Andy Baird on 3 May 2013 at 9:15 am

Building Control regulations for solar installations in Northern Ireland

Building Regulations is one of the most common things we’re asked about during initial enquiry and survey stage. This isn’t the sexiest of subjects when discussing solar PV, but it is important to understand the rules from the outset. In most cases, and without exception if solar is t…

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How LED lighting can cut commercial electricity bills

Posted by Paul Hutchens on 2 May 2013 at 9:27 am

How LED lighting can cut commercial electricity bills

LED provides a more efficient method of producing light than other bulbs. This efficiency is because LEDs (light emitting diodes) produce light via through the movement of electrons. In contrast, traditional bulbs pass an electric current through a thin wire, halogen bulbs produce light via the c…

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Why isn't draught-proofing EPC's number one recommendation?

Posted by Linn Rafferty on 29 April 2013 at 10:44 am

Why isn't draught-proofing EPC's number one recommendation?

Q: I've been wondering about how often the EPC suggests-draught proofing and extreme draught-proofing as the number 1 recommendation? 

Most homes built before the 1950s are really draughty, even if the new builds have low U values for walls, floors etc or good thick insulation, it is rat…

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Readers tips of the month - April 2013

Posted by Cathy Debenham on 29 April 2013 at 9:30 am

Readers tips of the month - April 2013

"Most cost effective measures are to improve thermal performance of property with good insulation generally," says architect Clinton. "But watch natural ventilation/airtightness to avoid condensation problems unless you are installing a mechanical ventilation system. Use as man…

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Which solar panels are best?

Posted by Chris Jardine on 25 April 2013 at 12:10 pm

Which solar panels are best?

Choosing the best solar panel is a bit like choosing the best sandwich for your lunch. What’s better for you – a BLT or a cheese and pickle sandwich? Well, the cheese sandwich wins in terms of lower calories and lower fat, but the BLT contains more protein and more vitamins and nutrie…

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DECC explains how green deal and feed-in tariffs work together

Posted by Cathy Debenham on 24 April 2013 at 12:09 pm

DECC explains how green deal and feed-in tariffs work together

You can use Green Deal finance to help meet the costs of installing solar PV, wind or even microCHP* on your property and receive the Feed In Tariff (FIT) as well. Hydro generation and anaerobic digestion receive FIT but are not eligible for Green Deal finance. The amount you can finance thro…

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When will I get renewable heat incentive (RHI) payments?

Posted by Cathy Debenham on 22 April 2013 at 9:17 am

When will I get renewable heat incentive (RHI) payments?

A: As RHI (renewable heat incentive) payments have been delayed again till Spring 2014, do we have to wait till then to get our payment? So there will be no payment in 2013 then? Q: If you are what the government describes as a 'legacy' applicant, which means someone who has installed…

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Infrared panel heating: your questions answered

Posted by NicoleYouGen on 19 April 2013 at 9:30 am

Infrared panel heating: your questions answered

What are infrared panels?  Infrared panels emit a very high ratio of heat as radiant heat. This heats objects directly, rather than warming the air (which is what convection heat does). Other examples of high-radiant heaters include portable halogen heaters, infrared outdoor patio heatin…

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