Tue, 09 Jun 2026 12:03:58 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78553#Comment_78553 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78553#Comment_78553 Fri, 26 Mar 2010 11:17:52 +0000 jwd
One of our directors mentioned this product: http://www.royale-radiators.com/ as an alternative. Its a high tech electric radiator that claims to rduce heating costs to the level of gas systems.

Im not sure if this is the real deal or another gimmick. Does any one have any thoughts?

In the meantime we try to improve our insulation and draft proofing but we have a big problem with very poor air quality. There isnt much in the way of controllable ventilation. If the plce was more airtight i would look at MHRV as a solution but its an old stone building with suspended floors and strapped walls.

Any help most welcome

Jwd]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78576#Comment_78576 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78576#Comment_78576 Fri, 26 Mar 2010 14:19:51 +0000 CWatters
i'd look at:

1) If your existing heaters are proper storage heaters check they are set up to use economy 7 (cheap night rate).

2) Get the time controls improved so that you don't charge them up on a friday or saturday night unless the building is going to be used Saturday and Sunday.

3) Use the comparison sites to check you are on the cheapest electricity tarrif. Do that at least every 6 months.

4) Ask the electric co if they have a special tariff for charities?

Edit:Having said that they are 100% efficient this ignores loss from the night storage heaters heating the building at night when nobody is there. However those losses should be outweighed by the cheaper night tariff.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78581#Comment_78581 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78581#Comment_78581 Fri, 26 Mar 2010 14:50:56 +0000 Gavin_A
storage heaters are designed to be on economy 7 type tarrifs to heat up overnight on cheaper rate electricity, if you're not on one of these style tariffs then you should be able to at least half your energy bills just by switching tariff. Even if you're on economy 7, it's worth checking the potential to switch to a weather compensated version of the tariff, which if I understand it correctly would mean the energy company would automatically control the amount of time the heating circuit was on for overnight depending on the predicted outside air temperature for that coming day, which in theory ought to reduce bills again, and I'd have thought there'd be an option with that set up for setting a reduced level for weekends.

Standard electric radiators (even of the magic low energy kind in our link), may use less electricty overall because they're more controllable, but they also use the electricity when it's at peak rate, so could easily end up at least as expensive if not more so than storage heaters... which is why storage heaters were popular in the first place.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78644#Comment_78644 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78644#Comment_78644 Sat, 27 Mar 2010 16:06:10 +0000 tony
Then you could consider ASHP as this will offer better than 100% efficiency -- like 350% efficient --- what charity could turn its nose up at that?]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78650#Comment_78650 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78650#Comment_78650 Sat, 27 Mar 2010 16:34:11 +0000 CWatters
http://www.nottenergy.com/energy-costs-comparison3

Pence per KWH after "boiler" efficiency is considered..

Mains gas 4.24p
ASHP 4.09p
Electric (online rate) 11.2p
Electric (standard) 12.69p

For some reason they assume that ASHP is only 250% efficient on average. As a result they also say ASHP emits more CO2 than mains gas. Last time I wrote to them they were quite responsive so feel free to contact them for their reasoning. The notes say they use SAP data.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78662#Comment_78662 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78662#Comment_78662 Sat, 27 Mar 2010 17:56:36 +0000 Gavin_A
not sure why they don't include an economy 7 night storage option for electricity though.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78671#Comment_78671 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78671#Comment_78671 Sat, 27 Mar 2010 20:12:40 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78675#Comment_78675 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78675#Comment_78675 Sat, 27 Mar 2010 20:47:41 +0000 Gavin_A Posted By: tonyEven so ASHP wins.
not on CO2 emissions, and only marginally on cost over gas.

ashp 0.216 kg of CO2 per kWh
Condensing gas boiler 0.204 kg of CO2 per kWh

worth pointing out to the RHI people as they seem to have missed this point.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78676#Comment_78676 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78676#Comment_78676 Sat, 27 Mar 2010 21:29:25 +0000 SteamyTea https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78679#Comment_78679 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78679#Comment_78679 Sat, 27 Mar 2010 22:40:35 +0000 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78680#Comment_78680 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78680#Comment_78680 Sat, 27 Mar 2010 23:23:38 +0000 Nick Parsons https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78682#Comment_78682 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78682#Comment_78682 Sun, 28 Mar 2010 09:50:39 +0100 CWatters https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78703#Comment_78703 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5547&Focus=78703#Comment_78703 Sun, 28 Mar 2010 17:54:24 +0100 jemhayward