Tue, 19 Dec 2023 04:19:07 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303908#Comment_303908 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303908#Comment_303908 Wed, 18 Oct 2023 17:14:16 +0100 bogal2 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303909#Comment_303909 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303909#Comment_303909 Wed, 18 Oct 2023 17:34:03 +0100 fostertom http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303910#Comment_303910 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303910#Comment_303910 Wed, 18 Oct 2023 18:33:29 +0100 Nick Parsons http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303920#Comment_303920 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303920#Comment_303920 Thu, 19 Oct 2023 08:21:38 +0100 GreenPaddy IR panels can be fitted by any electrician, there's no maintenance, no lead-in time to get the place warmed up in advance of use (a little in advance can take the chill off surfaces). Also, if you don't get the number/position of panels quite right, it's easy to adjust/add. Being "generally" white flat panels, they are unobtrusive, and you may even want to add some similarly shaped acoustic panels, to help with the reverb sometimes experienced in halls.
Since there's no real background heating (assuming they are turned off after hall usage), be careful that water pipes etc may not then be protected. You could of course have a frost stat linked to them, to keep a 5oC min temp.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303921#Comment_303921 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303921#Comment_303921 Thu, 19 Oct 2023 08:33:06 +0100 fostertom
The radiant output coming off the surfaces and structure will take a matter of days of heat input, to heat up enough to play a part in 'comfort', but once done, and kept going fairly constantly, provides best comfort for least fuel, as it allows air temp (hence building heat loss) to be quite low. High radiant and lower air temp is what humans find most comfortable - the higher radiant heat being received on the body compensates for the lower heat being received via air temp.

So air-to-air would seem the poorest and most fuel-hungry way to intermittently heat a hall. But techniques to instead heat up the surfaces and structure, so they radiate more, accompanied by lower air temp - like UFH - are not good at intermittent heating have to be kept going more or less continuously. However, in chuches, it is poss to put warm-air generators under the pews, so that as long as people stay put they sit in a local warm-air bubble.

Which, for a hall, leaves strong prob overhead radiation as the 'instant' intermittent alternative, which has to overcome both the lack of warm radiation from surfaces and structure, and the cool air. It can be quite effective, for least fuel, but isn't capable of real toasty comfort, as it always only warms the parts of the body that it can 'see', while leaving your backside fully exposed to the cool air and the lack of warm radiation from surfaces and structure.

It can't simply be made stronger, otherwise you'll feel like you're under a grill. But you can choose between small-area red-hot electric radiators, or much larger-area so called 'black heat' piped heaters, which are a major installation, being supplied either with hot water, or with burning gas being blown along pipes. Large-area 'black heat' will come much closer to true comfort, compared with dead-easy small-area red-hot electric radiation, but at considerable cost.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303923#Comment_303923 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303923#Comment_303923 Thu, 19 Oct 2023 09:13:52 +0100 tony http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303925#Comment_303925 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303925#Comment_303925 Thu, 19 Oct 2023 12:39:28 +0100 philedge http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303926#Comment_303926 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303926#Comment_303926 Thu, 19 Oct 2023 12:55:18 +0100 WillInAberdeen
Imagine yoga is the same, but haven't tried that!]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303948#Comment_303948 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303948#Comment_303948 Fri, 20 Oct 2023 11:42:01 +0100 bogal2 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303949#Comment_303949 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303949#Comment_303949 Fri, 20 Oct 2023 11:57:58 +0100 bogal2 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303963#Comment_303963 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17996&Focus=303963#Comment_303963 Fri, 20 Oct 2023 18:45:35 +0100 Mike1 Posted By: bogal2They have classes, approx one a day there.
If they're exercise / Yoga classes then infra-red would be cheap and effective. If they're classroom-type classes then, as Tom has mentioned, they're line-of-sight only, so anything under a desk won't be heated and wouldn't be a good solution.]]>