OWB - Hot water heater help please...

[blackdogon57]

I am having problems with recovery time on hot water heater. Heat exchanger is properly sized shell and tube attached to existing oil fired tank. I have had oil shut off for almost a year with no problems, however the recovery time seems to getting slower and slower. Boiler water is 175 and I am certain that circulating pump is operating. I have tried bleeding air from top of exchanger and have tried adjusting mixing valve with no luck. Any one have any ideas ??

Thanks

 

[rx7145]

How good (or bad) is your water?

I had a Heat exchanger plug all the way up in 20days. This was a flat plate but your might be doing the same thing.

 

[blackdogon57]

Bad water

yes - could be the water. There is no softener . Is there an easy way to determne if it is plugged ?

 

[rx7145]

Take it apart and look. I broke down and got a softener.