Ferdinand Posted December 4, 2018 Share Posted December 4, 2018 (edited) Can someone check that I am reading a commercial gas meter correctly. 2 photos taken 15 minutes apart. Am I right that is 5 cubic m of gas, which will cost something like £1.50? I don't mind being out by a third in my guestimate, but I do not want to be out by 10x. I am asking because we have a BFO gas blower in our gym unit - they divided 20k sqft into 3 and as the first occupant we got to choose and had the one with the existing heating system - and I don't want to find I calculated it wrongly in 2-3 months' time. We just want to take it from frozenballs to training temperature in the morning 1st thing through the winter. Cheers F Edited December 4, 2018 by Ferdinand Link to comment Share on other sites More sharing options...
PeterW Posted December 4, 2018 Share Posted December 4, 2018 Thats a reading of 4.6 cubic metres so it’s correct on the calculation. The blown air units are pretty hefty - a 200kw fan unit in a single medium sized industrial unit wouldn’t be surprising so it’s about right. Bear in mind these units and the heating systems are designed to keep them above 12-14c, not 18-20c. There will be no floor insulation, very little in the walls and roof so you’re trying to heat a very big volume that is losing a lot of what you pump into it. Link to comment Share on other sites More sharing options...
dpmiller Posted December 4, 2018 Share Posted December 4, 2018 IR is better for big open spaces- heats you, not the air. Link to comment Share on other sites More sharing options...
Ferdinand Posted December 4, 2018 Author Share Posted December 4, 2018 (edited) 1 hour ago, PeterW said: Thats a reading of 4.6 cubic metres so it’s correct on the calculation. The blown air units are pretty hefty - a 200kw fan unit in a single medium sized industrial unit wouldn’t be surprising so it’s about right. Bear in mind these units and the heating systems are designed to keep them above 12-14c, not 18-20c. There will be no floor insulation, very little in the walls and roof so you’re trying to heat a very big volume that is losing a lot of what you pump into it. Thanks Peter - so about 10p per minute whilst it is running. Good enough to know we won't get an umpteen thousand £££ bill without warning. Thanks. 1 hour ago, dpmiller said: IR is better for big open spaces- heats you, not the air. Yep - we need to think it through carefully. Will add a couple of piccies. Ferdinand Edited December 4, 2018 by Ferdinand Link to comment Share on other sites More sharing options...
Ferdinand Posted December 4, 2018 Author Share Posted December 4, 2018 (edited) This is the whole thing pre-refurb. Length is about 55m, and width a little under 30m. Eaves height is about 4.5m, and apex about 9m. Here is the unit during refurb showing the gas heater. Our unit is about 18m x 30m, with a couple of extra spaces on the end - a former dye house and a store. When we ran a test yesterday it put the temperature up by about 6-7 Celsius in 15 minutes. A previous test had people commenting on being too warm whilst exercising. Suspect our members are quite inured, however. I'll see if I can find a more recent one with the fit out more complete. It is nice in summer that it keeps fairly cool, as we have double doors one end and a roller shutter the other for a through draft. We need to do a bit of playing around - I think in winter on cold days it will want a whump in the morning to get the chill off, and then perhaps another in the afternoon after the afternoon lull. I think we may get some Far-Infrared type heating for the more sedentary areas such as warmup / yoga stretching / childrens area and reception. Time to collect some data and ask for some feedback from members and people on the current pre-Christmas promotion. F Edited December 4, 2018 by Ferdinand Link to comment Share on other sites More sharing options...
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