how do i heat a yoga room to 45 c with the most efficiency

Jim Pompetti

I only helped with one large yoga room .The primary furance was set all the way up ,and we added a electric ceiling hung unit to go over the top. This was called " Hot Yoga" and they wanted the room around 100° F.

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magrath

just wondering if any one could help me with a heating question.i wanna know whats the most efficient/ cost effective way to heat an 800 sq.ft room to 45 degrees C for practicing yoga?

hot_rod

slab? framed floor?

windows?

Do a heat load calc to see how much load you have first. Consider ventilation needs. Radiant slabs are nice for working out on concrete floors, but slow responding.

Panel radiators with TRVs and setback controls could be a nice quiet, quick, comfortable method for a room used for a few hours or so a day.

hr

Mark Eatherton

So ya wanna sweat eh....

Go radiant floors, walls and ceilings and don't worry about raising the air temperature. Satisfy the MASS in the space with high MRT and don't worry about the air.

I think it's called Bikram Yoga.

http://en.wikipedia.org/wiki/Bikram_Yoga

ME

jp_2

thats 113F

is this for yoga or suana? radiant flooring would melt the yoga'ers. force air would be the best solution if you only yoga couple times a week.

how often and how long does the room need to stay at this temp?

Josh (The Youngster)_2

Just finished one off last month. Because heating the mass takes so long and the room is probably used for many purposes you might actually want to go non-radiant. We went with radiant floor, wall, and baseboard as second stage. I'm having second thoughts now.

Brad White_203

Downward Dog

Radiant floors are an "ideal but not perfect" way to go. I say this because the ideal maximum floor temperature for physiological comfort is about 85 degrees, roughly the skin's outer temperature. You might feel hotter than it actually is because your body cannot radiate heat to a warmer object. But for an hour and a half, you will live. Shivasana is only temporary

You can go to 90F but that is still lower than your room temperature so some supplementation will be necessary. Radiant ceiling can be a nice touch, same with radiant walls, a cocoon of heat.

You CAN drive the temperature up but with wood (bamboo) floors this can be rather high, the flooring manufacturer should be consulted.

The yoga my wife and I practice, has the room at about 95 degrees F. and they have not yet embraced radiant but use space heaters.

But radiant would make a nice baseline, you bet.

tim smith

I have wondered in this application how low intensity gas

radiant tubes would work. If ceiling height high enough, could heat up space easily with out cooking heads of yogurt's. Would be efficient. Just a though, what ya all think??? Would be great heat for muscles.. Tim

Brad White_203

Height

I think if you had enough height and coverage, that is not a bad way to go, Tim. Just concerned that if the room has low ceilings, the tubes need a very low output and closer spacing.

If too low, Sun Salutations take on a certain challenge of deep breathing -followed by intense screaming.

[Deleted User]

No Mas(s)

Low mass fast responding panel emmitters, like WarmBoard on the floors, Roth Panel on the walls and ceiling. Then the only "mass" you'd be seeing is the sheetrock.

We had a house one time that the renter wanted to turn into the Bikram Yoga studio. Most conventional heating systems are not capable (if properly sized) of generating enough heat to quickly raise the room air temperatures to the desired point (100+ deg F). She had every electrical outlet filled with portable fuse blowers (heaters) to acheive her goal.

I still say, that if you want to sweat, raise the MRT, and you WILL break out in a sweat, just walking across the room. I know because non customers of ours tell us so :-)

Plus, I've "worked out" in many a boiler room with an elevated MRT, and know it to be true.

Plus, when we do our "human microwave ovens" a.k.a. radiant wall, floor and ceiling steam showers, the customers LOVE it. Only problem is, they like to keep it hot all the time, and the radiant energy creeps outward and away from the core, causing over temp issues in the other nearby rooms. Even WITH high density insulation. It's like a glowing nuclear reactor core. It emminates everywhere...That's why they call it RADIANt energy. It travels omni-directionally :-)

ME

tim smith

Nyuk Nyuk Nyuk, Ceiling heights would probably have to be at

least 9ft, with tubes set at high as clearances allowed. Sun tan lotion may be required. Hey, you could charge tanning salon rates at same time as yoga rates. A new meaning for burn baby burn. Tim

jp_2

sheetrock no plywwod?

mark, why don't you consider the 1" warmboard as part of the mass? its MRT will be much higher than the drywall, and I'd guess its heavier than 1/2 drywall?

troy_8

Yoga room

I designed a room that had radiant in a slab with flat tube radiators on the walls. The flat tubes were turned on when the room needed to be elevated in temp. I haven't been back to see it work but I haven't had any complaints.

steveex

Did one last year, install 3/4 high output baseboard. 70 btus per sq ft. Loop from steam boiler, room gets to 100 degrees but it takes 3 to 4 hours depending on out side temp. I am in brooklyn NY.

Frenchie

Cost effective

I totally agree with the radiant suggestions as ideal. However the original post states "cost effective". In my book a solution that would be cost effective and come up to temp very quickly would be a good old oversized oil fired warm air furnace. We all know how the air coming out the vents is nice and toasty with these beasts! Would be a lot safer than a bunch of space heaters, and a lot more practical(cheaper, faster) than an elaborate hydronic solution.

[Deleted User]

Define \"cost effective\"...

You can have it done right, cheap or again and again and again.

Pick one :-)

I despise the use of that term. It conotes cheapness, which I don't deal in.

If all you want is cheap heat, grab one of them 55 gallon drum wood heaters, and let 'er rip! Just don't let your insurance company or the fire department know what you're doing...

(all (mostly) said in jest)

ME

[Deleted User]

jp, my assumption

If the floor were to be used for other physical activity, then it needs to be structurally sound, hence my WB recommendation. WB is a structurally sound system compared to EPS foam.

I may have assumed wrongly, but I'd rather over kill (site unseen) rather than under kill.

Sheet rock is higher in conductivity than wood.My experience with WB has been that when the heat is stopped, it stops emmiting rather quickly. Sheetrock even more so. Fast response, relatively low mass. Ideal application.

ME

magrath

my thoughts were to use NG fired radiant tube heaters that are ceiling hungs as well. Other ppl's responses to this dilemna was to use baseboard or in floor radiant.problem is we will not be installing a boiler. Theres an existing commercial H-Vac in the space but we cant have the whole place 45 degrees, just the hot yoga room is to be that warm.Would a combination of a few low-mid output radiant tube heaters along with a couple electric radiant panel heaters be suffice you think?? the room needs to be heated fast then can be shut off for the night.Any other ideas?

Ron Gillen

Too Strange

Mostly bumping this to keep it around for another day or two. Never heard of hot yoga before until this thread. Next day a student comes to me with questions about how to design a system for his other half's new studio. Don't know much about the room. Told him we need a heat loss calc. Commercial space, 800 sq. ft., with some kind of fan coil units. I think if the ceilings are high enough that radiant tube heaters would be the ticket, they're pretty efficient and heat up / cool down pretty quickly. Hope the bays are well insulated cause you might be sharing more than they like.