EFM 520 Round Door Vs Square Door?

Scottscoaled · Post by **Scottscoaled** » Mon. Oct. 19, 2015 8:36 pm

Looks to me like your modines were hot water, not steam. I see supply and return lines.

Post by **Rob R.** » Mon. Oct. 19, 2015 8:42 pm

If the return is considerably smaller than the supply, it could have been two pipe steam.

Scottscoaled · Post by **Scottscoaled** » Mon. Oct. 19, 2015 8:48 pm

There is an aquastat on the return of the one

Pacowy · Post by **Pacowy** » Mon. Oct. 19, 2015 11:27 pm

I believe the aquastat limits the blower so it only operates when hot water is actually entering the unit. I agree w/Scott that this is a hot water set-up, since the return does not pitch back to the boiler.

Mike

joethemechanic · Post by **joethemechanic** » Tue. Oct. 20, 2015 4:04 am

Yeah That one Modine is connected to the 520 and is hydronic. The rest haven't been hooked up for years and they are 2 pipe steam

joethemechanic · Post by **joethemechanic** » Tue. Oct. 20, 2015 4:21 am

I saw my building's Previous owner at a funeral yesterday. We were talking afterwards and he said he still has the three 43 HP stokers he had stored in here before he sold me this place. We were laughing that I could heat this building to 120 degrees with one of them. They were set up for steam and in nice condition. He was going to use them down at South Tamaqua Breaker.

joethemechanic · Post by **joethemechanic** » Tue. Oct. 20, 2015 7:03 am

Steam

joethemechanic · Post by **joethemechanic** » Tue. Oct. 20, 2015 8:43 pm

Damn, too big. Nice shape and all there though

1,412,660.16 BTUh

windyhill4.2 · Post by **windyhill4.2** » Tue. Oct. 20, 2015 9:24 pm

Biggest problem that I see with that one,it can't burn coal.

joethemechanic · Post by **joethemechanic** » Tue. Oct. 20, 2015 9:53 pm

windyhill4.2 wrote:Biggest problem that I see with that one,it can't burn coal.

Sorry I screwed up the pictures. I edited it to show the stoker parts

They were converted to stokers. They were in a breaker for heat. They were stored in my building up until July. I probably should have bought them then

joethemechanic · Post by **joethemechanic** » Thu. Oct. 22, 2015 10:53 pm

The stoker is stoking. So much pipe and baseboard replaced the past 2 days. Going to go take a hot coal fired shower

Post by **StokerDon** » Fri. Oct. 23, 2015 5:19 pm

NICE!

Coal fired hot showers are the best!

-Don

Post by **Rob R.** » Fri. Oct. 23, 2015 5:59 pm

That is a good start. Is the coil preheating the water going into the electric water heater?

Any closer to installing something in the main shop?

joethemechanic · Post by **joethemechanic** » Fri. Oct. 23, 2015 7:28 pm

Rob R. wrote:That is a good start. Is the coil preheating the water going into the electric water heater?520

Any closer to installing something in the main shop?

Yes the coil does the preheat, the electric only comes on to keep the water warm (Almost Never).

I have one modine running in the shop. Pretty sure I bought another 520. Here is what I'm thinking of doing, I'm going to get some big tanks for thermal storage and heat them up with the 2nd 520. I was thinking something around 1,000 gallons. That should give me plenty of recovery heat (for when I open the doors) with the modines

If the tanks lose heat,,,, so what? They will only lose heat into the building

Scottscoaled · Post by **Scottscoaled** » Fri. Oct. 23, 2015 8:16 pm

Ahhhh, you must be thinking of re-piping the steam modines with a larger return and turning them into hot water units.