Ferdinand Posted December 4, 2018 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
PeterW Posted December 4, 2018 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.
dpmiller Posted December 4, 2018 Posted December 4, 2018 IR is better for big open spaces- heats you, not the air.
Ferdinand Posted December 4, 2018 Author 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
Ferdinand Posted December 4, 2018 Author 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
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