Welcome! Here are the website rules, as well as some tips for using this forum.
Is there a problem with a Roth Tank? I have a Roth tank 1000 with a oil fired boiler nad an oil fired hot water heater connect. The both systems can run for about 3 days and then the one closes to the tank gets air bound and it has to be bled. The one further from the tank never gets air bound. I tried tlocate the problem and when I thought I found it it comes in for service and the pump has to be bled. Is there a problem with connecting two heating unit to a roth tank?