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16

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: November 10, 2014, 02:48:04 PM »

The circ is inside at the heat exchanger. The hot line from outdoor wood boiler comes into bottom left of heat exchanger. The hot line on the oil boiler is on the top right side of the exchanger. My hot line on the back of the outdoor wood furnace is at the top. So it looks like my house side is backwards going in and out of the plate heat exchanger?

17

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: November 08, 2014, 06:21:37 PM »

It did not seem to make a noticeable difference with the extra pump in place. Not sure what to do.

18

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 20, 2014, 08:23:22 AM »

Ok my thought is to plumb the hot line from the flat plate heat exchanger into the return line of the gas boiler and plumb the return cold line from the baseboard and domestic water into the cold of the flat plate exchanger. That way the water is hot going into the boiler and coming out hot. I am thinking that should help with proper flow and i can shut the gas off and just let the water flow through the boiler, then when summer comes isolate the plate exchanger and turn the gas on for domestic hot water.

Do you think the taco 007-f5 pumps are the proper pumps for the job?

At one point someone had a pump running 24-7 on the house side it is now gutted, would it be necessary to have water flowing on the house side if nothing is calling for heat?

Should the hot water coming from the wood stove be about the same temp as the water coming out of the hot side of the flat plate heat exchanger?

Thanks for the help again!

19

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 18, 2014, 12:25:45 PM »

I have attached some real photos of my system.

20

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 16, 2014, 12:56:05 PM »

i did isolate the short loop of the exchanger on the house side , about 4 feet on both hot and cold and drain and refill the short loop. Water drained clean. I did that twice.

21

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 16, 2014, 11:32:24 AM »

On the house side of the flat plate exchanger when either pump is running the pipes are not very warm. You can grab any pump and hold it no problem

22

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 16, 2014, 11:25:49 AM »

I have the ability to shut the boiler off so it does not fire and the water just can then move through it. Which i have shut it down but it just takes forever for the dhw water to recover.

23

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 16, 2014, 11:02:10 AM »

Thank you for your input, please see attachment for diagram of layout.

24

Plumbing / Re: Help with system-Not Getting good amount of heat

« on: October 16, 2014, 09:45:48 AM »

The water does not circulate on the house side until the system is calling for heat or domestic hot water. Both domestic hot water and baseboard taco 007-f5 pumps are new.  On the house side there is good pressure in the system and air has been bled.

25

Plumbing / Help with system-Not Getting good amount of heat

« on: October 16, 2014, 09:05:13 AM »

Any ideas would be great. I have a Johnson outdoor wood burner.  All pipe coming from stove to house is new and insulated well in last 2 years. I have a 50 plate flat plate heat exchanger that was put in at the same time.  I am getting great heat to the house.  It is pumped to the house with a bell and gossett pl-36 pump.  On the house side I have a viessmann gas boiler and viessmann 53 gallon water storage tank.  I dont seem to have good heat on house side.  I have baseboard hot water, it is all on one zone and is approx 2000 square foot on the zone with 15 baseboards. Even when I am not calling for heat I cannot produce enough hot water from the wood burner to recover my domestic hot water even though the hot water coming into the house is 160.  It will take hours for the wood stove to recover the domestic hot water tank. The domestic hot water zone and baseboard hot water zone are both on seperate zone pumps and each pump is a taco 007-F5.  My baseboards never truly get hot even after running for hours. I am kind of thinking flow is not enough and i am wondering if a bigger pumps would help and what kind? This system was in the house when i moved there and i have been trying to improve it. Any ideas or suggestions would be much appreciated.