JustAnotherHomeOwner
New Member
Hi all...
TLDR: Any suggestions for brands who make a 4.5 or 6 gal hydronic expansion tank designed to sit on the floor? i.e. Air-valve not on the bottom, with appropriate stand/feet/legs
I have a *very* small mechanical room with a lot going on. I have a 125,000 BTU/h combi-boiler " feeding 1000' of underfloor, a couple of towel warmers and an air-hander for a 2500 sq ft house. Plus HRV, plus humidifier, plus air-filter, plus central vacuum, plus low ceiling crowded with ducts. etc.
Back in 2003 my installer - who did overall did a very good job - no major issues in 17 years - put the expansion tank 1/2" from the floor, so I can't access the valve to check the pressure or recharge it. :-(
The tank feels very heavy so I suspect it has failed... and the tank position will make it really hard to install a new combi-boiler (moving from NTI T150 - parts no longer available - to a Viessmann Vitodens 100-B1kA).
The only position for the tank my installer and I have come up with means the tank needs to sit on the floor. There is literally no wall or ceiling space left. We can't even run straps to the ceiling because directly above where the tank would go is the HRV. Yes, we're assuming hanging a ~60lbs tank (when it fails and is full) from the underside of the HRV is not a good idea (too conservative?)
The system was sized with the earlier version of the Watts ETX60 (6 gallon), but I suspect I may be able to use a slightly smaller 4.5 gallon - my installer is doing the math. This may help.
My installer and I thought this was going to be easy since there are plenty of larger tanks with stands...Watts has the whole ETSX line!
But no... I can't find a single hydronic expansion tank of this size that is designed to sit on the floor... i.e. water line on the top, and air valve low down on one side where you can get to it!
Any suggestions of brands who might have a 4.5 or 6 gal hydronic expansion tank designed to sit on the floor?
TLDR: Any suggestions for brands who make a 4.5 or 6 gal hydronic expansion tank designed to sit on the floor? i.e. Air-valve not on the bottom, with appropriate stand/feet/legs
I have a *very* small mechanical room with a lot going on. I have a 125,000 BTU/h combi-boiler " feeding 1000' of underfloor, a couple of towel warmers and an air-hander for a 2500 sq ft house. Plus HRV, plus humidifier, plus air-filter, plus central vacuum, plus low ceiling crowded with ducts. etc.
Back in 2003 my installer - who did overall did a very good job - no major issues in 17 years - put the expansion tank 1/2" from the floor, so I can't access the valve to check the pressure or recharge it. :-(
The tank feels very heavy so I suspect it has failed... and the tank position will make it really hard to install a new combi-boiler (moving from NTI T150 - parts no longer available - to a Viessmann Vitodens 100-B1kA).
The only position for the tank my installer and I have come up with means the tank needs to sit on the floor. There is literally no wall or ceiling space left. We can't even run straps to the ceiling because directly above where the tank would go is the HRV. Yes, we're assuming hanging a ~60lbs tank (when it fails and is full) from the underside of the HRV is not a good idea (too conservative?)
The system was sized with the earlier version of the Watts ETX60 (6 gallon), but I suspect I may be able to use a slightly smaller 4.5 gallon - my installer is doing the math. This may help.
My installer and I thought this was going to be easy since there are plenty of larger tanks with stands...Watts has the whole ETSX line!
But no... I can't find a single hydronic expansion tank of this size that is designed to sit on the floor... i.e. water line on the top, and air valve low down on one side where you can get to it!
Any suggestions of brands who might have a 4.5 or 6 gal hydronic expansion tank designed to sit on the floor?