Goglu
New Member
I purchased an EcoSmart 27kw system for a small home (2 bedroom 2 bathroom; 1 bath + 1 shower). Its winter in Canada up here, and its minus 20 degree C (-4F); so you can imagine water temperature coming in is very low (2-3C or 35-37F; I have yet to mesure it).
My tankless heater is working great for bathroom tap, kitchen sink, showers, but I can`t get it hot enough for the bath. After fiddling around with the valve and debating to change my pressure-balance valve to a thermostatic valve, I realized my problem wasn`t pressure, it was GPM demand for the tub faucet which probably doesn`t allow enough time to the water to heat up enough.
I read quite a bit on the topic from the web and all I come across is recirculating system and/or putting a tank to avoid cold phase between demand. Now, I am pretty sure, none of that will help me increase my hot gpm need.
I had an idea and tried to get information from the manufacturer or any manufacturer of tankless to see why I could not use a loop to bring hot water back to the cold water inlet of the tankless so the water temperature at the entry would be warmer, which, as per the manufacturer spec sheet, should increase hot water gpm. Obviously, I would need to put a check-valve and possibly a temperature valve.
I am looking at professional opinions to tell me why this should not be attempted? Since I cannot find anything on the topic, I am thinking there maybe something bad (wrong) in doing something like this... I still think this might be a solution.
Looking forward to hearing your thoughts and professional opinion.
Thanks
My tankless heater is working great for bathroom tap, kitchen sink, showers, but I can`t get it hot enough for the bath. After fiddling around with the valve and debating to change my pressure-balance valve to a thermostatic valve, I realized my problem wasn`t pressure, it was GPM demand for the tub faucet which probably doesn`t allow enough time to the water to heat up enough.
I read quite a bit on the topic from the web and all I come across is recirculating system and/or putting a tank to avoid cold phase between demand. Now, I am pretty sure, none of that will help me increase my hot gpm need.
I had an idea and tried to get information from the manufacturer or any manufacturer of tankless to see why I could not use a loop to bring hot water back to the cold water inlet of the tankless so the water temperature at the entry would be warmer, which, as per the manufacturer spec sheet, should increase hot water gpm. Obviously, I would need to put a check-valve and possibly a temperature valve.
I am looking at professional opinions to tell me why this should not be attempted? Since I cannot find anything on the topic, I am thinking there maybe something bad (wrong) in doing something like this... I still think this might be a solution.
Looking forward to hearing your thoughts and professional opinion.
Thanks