Heat Storage - Pros Cons and Opinions

StokerDon wrote: ↑

Tue. Dec. 14, 2021 7:27 pm

And it is 100% perfectly insulated. None of those BTU's will ever escape!

True that, Stoker Don!

Rob R. wrote: ↑

Tue. Dec. 14, 2021 4:12 pm

Don has shown some impressive results by slowing the fan down and getting longer burn cycles. That seems like it would have much shorter ROI.

This is likely the best route to take

You're welcome.

Mike

Lightning wrote: ↑

Tue. Dec. 14, 2021 7:16 pm

... These are a fierce little boiler lol..

That's enough motivation for me to dig the 100 ft long trench (by hand mind you) so I can run power to my AA130 in my garage...according to that document that Rob R. linked (that was a real good read!) It looks like the exhaust temp spikes initially but then as it runs it cools down? If I read the chart down to 180* ?! Is that true!?

Retro_Origin wrote: ↑

Tue. Dec. 14, 2021 7:53 pm

It looks like the exhaust temp spikes initially but then as it runs it cools down? If I read the chart down to 180* ?! Is that true!?

Are you referring to a chart in the lab report? Can you screen shot and post it?

As long as its running, the exhaust temp only increases and then plateaus at around 450 degrees.

If your referring to my screen shot, the 180 water was 10 minutes after the combustion fan kicked off.

Retro_Origin wrote: ↑

Tue. Dec. 14, 2021 7:53 pm

That's enough motivation for me to dig the 100 ft long trench (by hand mind you) so I can run power to my AA130 in my garage...

Oh yeah, I'd be all over it.. its absolutely imperative that you use insulated pex or you'll be heating the earth between the boiler and the house. If yer wanting to heat the house from the garage..

Lightning wrote: ↑

Tue. Dec. 14, 2021 8:05 pm

Oh yeah, I'd be all over it.. its absolutely imperative that you use insulated pex or you'll be heating the earth between the boiler and the house. If yer wanting to heat the house from the garage..

I was actually planning to run it at least this winter in the garage (it's barely a garage...an old chicken house actually) and then if it works all good, move it into the basement and restore it over the summer and replace my ka-6 with it. I need to dig the trench to run electric. I like the radiant heat too much, even though I have to carry all my coal in 5 gal buckets into the house...I'd rather have it in the house.

See lowest paragraph on the text document about temp drop after a few minutes.

They are explaining what happens during the combustion fan run time and then after it shuts off during the idle time while its drafting naturally.. Here it is on the graph.

If you're trenching PEX, keep water out of the trench, box it with 2" styrofoam, use well-insulated PEX assembly, Fill trench box with insulation that won't get damp, add inspection/maintenance access somewhere with shutoff/bypass valves.

You only get ONE chance to protect those BTUs from being frost-thawers