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[comnrailpwr]

Im no expert but do commercial HVAC by trade. I feel your delta T is high. I like to keep mine at 15-20*F and never let return temps get below 140 to prevent firebox condensation. You need more GPM in my opinion. Yes you wouldn't be pulling as Much btu from the boiler but you will be saving the thing from corrosion. Possibility you have terrible water and stuff is getting plugged up?

[hddmax66]

Im no expert but do commercial HVAC by trade. I feel your delta T is high. I like to keep mine at 15-20*F and never let return temps get below 140 to prevent firebox condensation. You need more GPM in my opinion. Yes you wouldn't be pulling as Much btu from the boiler but you will be saving the thing from corrosion. Possibility you have terrible water and stuff is getting plugged up?

I completely understand and yes i do think a larger pump would be nice. 97% of the time all my heat loads are not running at once so i think im fine there. Also the return is at the bottom of the burner and gets mixed and heated back up quick when i comes in contact the the 185 degree water. I was under the impressson that the condensation comes from when the total wood burner temp goes below 150?? Are you saying you think my pump is causing the wood burner to burn more? Now that you say something i think it would be a good idea to clean the y strainer i have not checked it yet.

[hddmax66]

Thanks everyone that takes the time to help and give me ideas. I really do appreciate it.


    THANK YOU

[Scott7m]

No the entire boiler don't have to go under, just one spot.  Many times they rust out right where the return flow hits the firebox, but when boiler temps are under 150 completely is when it would be rare, cause likely it would be out of wood and no moisture there to gather

Your delta t's are rather large, it seems your often near the danger zone and if all 3 are in use you are in the red so to speak

What size pump u have?

[hddmax66]

I have the 009. I did the worse case with the hot water. I had the hot tub all the way open and the sink all the open. We rarely take baths in the hot tub. I also  have the low flow shower heads which when running barely drop the return temp.

[Scott7m]

011 would likely work much better in your situation

[hddmax66]

I will take your advice. I always wanted a back up pump on hand but never pulled the trigger. Ill put the 011 pump on and leave the 009 for the back up. But i still dont think that would be the answer to my problem. Or maybe i dont have a problem. Idk

[Scott7m]

Well you'll def be movin more water, I'm sure used your stove doesnt have a thermo valve from cb

[hddmax66]

i see there are a 011-f4 like 240ish and a 011-bf4 on differnt site for 189. what sthe diff? do you know which one i need? I did not install the thermo valve and my temp has never been below 160. i only hit 160 once before.

[Scott7m]

i see there are a 011-f4 like 240ish and a 011-bf4 on differnt site for 189. what sthe diff? do you know which one i need? I did not install the thermo valve and my temp has never been below 160. i only hit 160 once before.

Looks to me like your well below 160 all the time....

Thermovalve doesn't keep the tank above 150, it keeps the return temps above 150!  If you ever have an issue, cb isn't even gonna talk to ya.

I'll look about those pumps for you, not sure what the different is off the topmof my head

[Scott7m]

Bf4 is a discontinued bronze model....

The other is the regular one...

[Scott7m]

Might consider a 2400-20

[hddmax66]

i see there are a 011-f4 like 240ish and a 011-bf4 on differnt site for 189. what sthe diff? do you know which one i need? I did not install the thermo valve and my temp has never been below 160. i only hit 160 once before.

Looks to me like your well below 160 all the time....

Thermovalve doesn't keep the tank above 150, it keeps the return temps above 150!  If you ever have an issue, cb isn't even gonna talk to ya.

I'll look about those pumps for you, not sure what the different is off the topmof my head

Can you show me the info on this? As far i know and read this is not true.
And how will the boiler rust out at the point where the water returns from condensation?

[Scott7m]

Yea it's likely in your manual from cb, it is in all the new ones

Empyre requires the same thing too on there gassers

Yea if it creates a cold sport eater can condensate on that area, rust and cause water to drip into the ashes....

It is required of cb and empyre for warranty