I’m planning a multi-head shower (6 body spray, rain tile, and regular shower head). Will have an 80 gal/max – 60 gal/min whirlpool too. I currently have ¾ pex hot and cold supply lines available. I have a recirc return line there too. The shower is on the second floor and HWH is in the basement. There is no plan to use the shower and tub at the same time
There’s a 40 gal HWH used as a storage tank off the Geo de-super heater. This feeds the 55 gal AO Smith electric HWH with ¾ copper out – ties to a manifold then ¾ pex to the shower. About a 40’ run
The de-super heater is providing hot water to the 40 gal tank during the heating and cooling season. This is about 8 months out of the year. The holding tank is not currently wired, but could be to provide additional hot water with the 40 gal and 55 gal in a series.
Questions:
With the body sprays and rain tile all turned on, will I be pushing the hot water supply (3/4 line capacity/flow) too much? Could be 16 – 18 gpm on the high side? The exact fixtures have not been selected. Doubt we would typically run all at once, but would like the option.
This remodel is a full demo. I’ll be in the floor to move drain lines and can open walls/ceilings to run supply lines as necessary. I may have a 2x6 wet wall for the valves/piping/venting.
Many Thanks!
Matt
There’s a 40 gal HWH used as a storage tank off the Geo de-super heater. This feeds the 55 gal AO Smith electric HWH with ¾ copper out – ties to a manifold then ¾ pex to the shower. About a 40’ run
The de-super heater is providing hot water to the 40 gal tank during the heating and cooling season. This is about 8 months out of the year. The holding tank is not currently wired, but could be to provide additional hot water with the 40 gal and 55 gal in a series.
Questions:
With the body sprays and rain tile all turned on, will I be pushing the hot water supply (3/4 line capacity/flow) too much? Could be 16 – 18 gpm on the high side? The exact fixtures have not been selected. Doubt we would typically run all at once, but would like the option.
- If I need a 1” hot water supply line, will the ¾ outlet from the top of the HWH be a bottleneck?
- For more hot water, could I add an additional ¾” line from the tank instead of running a 1” line? (there’s a manifold I could tie into). Does this fall into the same potential concern of the ¾ hot off the top of the tank.
This remodel is a full demo. I’ll be in the floor to move drain lines and can open walls/ceilings to run supply lines as necessary. I may have a 2x6 wet wall for the valves/piping/venting.
Many Thanks!
Matt