Question about Bosch & Tankless LP Hot Water Heater
I have a Bosch on demand hot water heater that is suppose to handle 2-3 functions (2-3 water outlets) at once. If someone is taking a shower and another person washes their hands with even minimal hot water the shower water gets cold. Any sugestion?
Someone has not sized the system correctly. The water heater will heat a certain GPM a certain temperature rise. Most of those "generalizations" from the manufacturers are referencing the lowest of all the flow requirements like 2 lavatories. The truth is, don't use other fixtures while showering or get a bigger system. Lots of information related to sizing the tankless system at http://www.mechanicalengineeronline.com/Mini_Sites/Tankless_Water_Heaters_Ebook/Tankless_Water_Heaters.htm Have a good one. PS:Properly sized On-Demand water heaters are actually really good. Be prepared for the day your water heater quits.
Posted on Jun 10, 2009
Hi, if you have a symmons shower valve they make a replacement stem that will balance the amount of water going to your shower valve. I have delt with Bosch units for yrs and main problems that i run into is wrong installation, or the type of fixtures that that they are supplying, meaning that they pull tooo much water great when u shower but like you said when a person turnes on a sink it goes cold thats from too much water passing thru the heat exchanger. What unit do you have, 425hn will cause most likely that problem. If you have a 635esn you may not have your flame up highenough. let me know what u have for a unit. thx
Posted on Jun 24, 2009
Turn the temp to max...sadly on demand water heaters aren't very good.
Posted on Mar 11, 2009
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Posted on Jan 02, 2017
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