Toilets, Sinks, Showers, Tubs and Disposals - Whirlpool tub install - insulating and bedding
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marksimms
03-02-05, 07:20 AM
We are installing an American Standard 65" whirlpool tub. It will be a "drop-in" installation into a platform built on a cement floor (ground floor).
Most manufacturers recommend placing the tub into a "mortar bed" during installation. However, I have my concerns about heat loss....our cement floor is certainly "cold".
I developed an alternate approach that would employe high-tech spray foam which forms a strong support as well as some decent insulation.
TO do the job properly, I'll probably have to use a slow-curing foam with a high strength rating.
We had planned on building a small floor out of 2x4's and can actually build a small "dam" where the tub bottom will be sitting.
Anyone see a problem with this approach ?
Anyone have a recommendation on the manufacturer of the proper foam ?
Most manufacturers recommend placing the tub into a "mortar bed" during installation. However, I have my concerns about heat loss....our cement floor is certainly "cold".
I developed an alternate approach that would employe high-tech spray foam which forms a strong support as well as some decent insulation.
TO do the job properly, I'll probably have to use a slow-curing foam with a high strength rating.
We had planned on building a small floor out of 2x4's and can actually build a small "dam" where the tub bottom will be sitting.
Anyone see a problem with this approach ?
Anyone have a recommendation on the manufacturer of the proper foam ?
DUNBAR PLUMBER
03-11-05, 06:50 PM
I don't know any specific brands on the foam other than those canisters bought at the big box stores.
I always set my tubs, showers, and jacuzzi's in a bed of mortar.....never had any complaints about being cold. I would wrap the sides in insulation but absolutely do not seal off the area for the pump; it must have air movement/access to keep from overheating.
I just replaced a jacuzzi pump for a bed and breakfast in my area and the new one started to do the same thing as the old, shut down.
She ran the pump with the side access panel off with no problem for an hour.
I know these pumps are loud, but they have to be able to cool down.
I always set my tubs, showers, and jacuzzi's in a bed of mortar.....never had any complaints about being cold. I would wrap the sides in insulation but absolutely do not seal off the area for the pump; it must have air movement/access to keep from overheating.
I just replaced a jacuzzi pump for a bed and breakfast in my area and the new one started to do the same thing as the old, shut down.
She ran the pump with the side access panel off with no problem for an hour.
I know these pumps are loud, but they have to be able to cool down.
Pendragon
03-12-05, 08:06 PM
We are installing an American Standard 65" whirlpool tub. It will be a "drop-in" installation into a platform built on a cement floor (ground floor).
Most manufacturers recommend placing the tub into a "mortar bed" during installation. However, I have my concerns about heat loss....our cement floor is certainly "cold".
Which one are you installing?
Read the directions, the AS tub (cadenza elite) I put in says a bed is not required, in fact, no other support is needed for the bottom of the tub. The edges/lip are not suppose to support the tub (for recessed installs), the bottom is.
http://forum.doityourself.com/showthread.php?t=202413
As for insulating it, once you put in the hot water, it won't be cold anymore.
Just insulate the surround area, but as mentioned, don't block the air flow around the pump.
And remember to leave the required access for the pump, or you will have no warranty coverage.
Most manufacturers recommend placing the tub into a "mortar bed" during installation. However, I have my concerns about heat loss....our cement floor is certainly "cold".
Which one are you installing?
Read the directions, the AS tub (cadenza elite) I put in says a bed is not required, in fact, no other support is needed for the bottom of the tub. The edges/lip are not suppose to support the tub (for recessed installs), the bottom is.
http://forum.doityourself.com/showthread.php?t=202413
As for insulating it, once you put in the hot water, it won't be cold anymore.
Just insulate the surround area, but as mentioned, don't block the air flow around the pump.
And remember to leave the required access for the pump, or you will have no warranty coverage.