Hi,
I have a tankless water heater. I have a hot water recirc loop with a taco pump. I have a bosch 4 gallon electric water heater to keep the loop hot.
I have a T-K1 tankless water heater linked here https://www.takagi.com/media/48144/T-K1.pdf
In the winter I kick up the water to 131 output temp ... in the summer the basement and the ground water is hotter so I keep it at 121 output temp.
Last 2 days I the Moen mixer one handle shower faucet was on FULL hot but the water was just barely warm enough to take a shower comfortably. I have replaced the cartridge in the shower faucet a couple of years ago. Wife is hopping mad... She goes to the kids bathroom right above the tankless heater and has no issues in that shower with the same model faucet/shower.
I take a shower myself a few minutes later and have the same issue and keep the water in the shower running full on hot per the faucet then reach over the the vanity water is so hot you can not keep your hand under it. This bathroom is about 55 feet from the tankless heater on the other side of the house.
An hour later I test 2 handle tub next next to the always weird shower and it too is not not coming out of hot only faucet after running it for 2 minutes. Vanity is SMOKING hot. I leave on the water on in the tub, vanity then go to the garage sink on the other side of the wall and then that water gets very hot. I go BACK in the bathroom and now the shower and the tub are all HOT. My definition of HOT is what the water temp set to on the heater. 131 .. then 140 ... can't hold my hand under it at length
I am so confused.
Water pocket in the line? what?
I have seen this a couple of times over the past couple of years in my kitchen as well. I have 2 sinks in the kitchen. All of sudden or maybe the first time you turn on the water in the main sink... just warm water... wait for the cold to flush out ... still warm/cold ish.. Turn on the little bar sink in the kitchen and HOT ... go back over the main sink HOT.... turn off bar sink... use main sink as normal? WTF is going on?
Sorry to ramble... Ideas and thoughts appreciated as to how to fix this crazy house.
thanks haeffnkr
I have a tankless water heater. I have a hot water recirc loop with a taco pump. I have a bosch 4 gallon electric water heater to keep the loop hot.
I have a T-K1 tankless water heater linked here https://www.takagi.com/media/48144/T-K1.pdf
In the winter I kick up the water to 131 output temp ... in the summer the basement and the ground water is hotter so I keep it at 121 output temp.
Last 2 days I the Moen mixer one handle shower faucet was on FULL hot but the water was just barely warm enough to take a shower comfortably. I have replaced the cartridge in the shower faucet a couple of years ago. Wife is hopping mad... She goes to the kids bathroom right above the tankless heater and has no issues in that shower with the same model faucet/shower.
I take a shower myself a few minutes later and have the same issue and keep the water in the shower running full on hot per the faucet then reach over the the vanity water is so hot you can not keep your hand under it. This bathroom is about 55 feet from the tankless heater on the other side of the house.
An hour later I test 2 handle tub next next to the always weird shower and it too is not not coming out of hot only faucet after running it for 2 minutes. Vanity is SMOKING hot. I leave on the water on in the tub, vanity then go to the garage sink on the other side of the wall and then that water gets very hot. I go BACK in the bathroom and now the shower and the tub are all HOT. My definition of HOT is what the water temp set to on the heater. 131 .. then 140 ... can't hold my hand under it at length
I am so confused.
Water pocket in the line? what?
I have seen this a couple of times over the past couple of years in my kitchen as well. I have 2 sinks in the kitchen. All of sudden or maybe the first time you turn on the water in the main sink... just warm water... wait for the cold to flush out ... still warm/cold ish.. Turn on the little bar sink in the kitchen and HOT ... go back over the main sink HOT.... turn off bar sink... use main sink as normal? WTF is going on?
Sorry to ramble... Ideas and thoughts appreciated as to how to fix this crazy house.
thanks haeffnkr
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