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We are just in the middle of finalizing house plans and I had planned to have a tankless water heater and use the manablock system as I have neighbors with each and love them. However, more than once I have heard the opinions of plumbers who dislike both of them. I had planned to place the mechanical in a new spot just to reduce the distance of runs (on the side of the house where laundry, master and kids bath) from the manablock and to have the tankless near an outer wall to reduce teh amount of the expensive stainless pipe needed. However, if we go with traditional plumbing (still PEX obviously) and old fashioned water heaters, likely two 40 gallon units.
The opinions against are:
-larger gas line for the tankless and pressure reducers for everything else to not have the higher 2lb pressure, takes longer to get teh hot water.
-manablock-it was a trend, waste of lots of pipe plus way more labor to install (plumber told me to just add a thousand dollars over traditional plumbing), take longer to get hot water, contrary to claims, 1'2" pipe creates way too much pressure drop (also contrary to claims),
Just wanted to collect a few more opinions, clearly the traditional systems on both factors are cheaper, which I like, but being our own design we really want the better options and cost is not that much different. Thanks for your help!
The opinions against are:
-larger gas line for the tankless and pressure reducers for everything else to not have the higher 2lb pressure, takes longer to get teh hot water.
-manablock-it was a trend, waste of lots of pipe plus way more labor to install (plumber told me to just add a thousand dollars over traditional plumbing), take longer to get hot water, contrary to claims, 1'2" pipe creates way too much pressure drop (also contrary to claims),
Just wanted to collect a few more opinions, clearly the traditional systems on both factors are cheaper, which I like, but being our own design we really want the better options and cost is not that much different. Thanks for your help!