Finally Posting Pics of Garn Install and Heating System Dec. 2013

[brad068]

House furnace w/ switching relay, ETC, diverter valve, and cube relay all tied together with TT and aquastat.

House manifold. Plumbed for in floor, domestic HW, forced air, and spare port.

Another angle

Shop bathroom manifold. Plumbed for in floor and domestic HW

Back of Garn

Supply/Return from Garn 2" SCH 40 going to a 10' x 20" x 50 plate HX w/ 2.5" ports.
I pressurized the load side of the HX to distribute to all other manifolds.

Primary load side loop. 2" SCH 40 w/ primary circ. feeding 2 secondary circs. All pressurized.

Another angle

The Holy Grail.... GARN


Hopefully this goes thru. First time I have posted in quite awhile.

 

[Buzz Saw]

Looks awesome. What is your lowest usable water temp for your forced air zone?

 

[brad068]

Looks awesome. What is your lowest usable water temp for your forced air zone?

I have to think...@ 135F the aquastat activates the cube relay which diverts the TT signal back to the gas burner. In the same instance the diverter valve is closing too controlled by the switching relay which cools off the coil and the ETC sense that and shuts down the fan.

I'll have to pull out the wiring schematics I drew up.

 

[Buzz Saw]

I have to think...@ 135F the aquastat activates the cube relay which diverts the TT signal back to the gas burner. In the same instance the diverter valve is closing too controlled by the switching relay which cools off the coil and the ETC sense that and shuts down the fan.

I'll have to pull out the wiring schematics I drew up.

At 135* how often do you have to fire the garn to maintain temperature?

 

[brad068]

At 135* how often do you have to fire the garn to maintain temperature?

Its fired twice a day. It heats 3800 ft2 shop (in floor and HW), and 3500ft2 house- (in floor, forced air, and HW)

 

[huffdawg]

What Garn is it? Nice clean looking work.

 

[brad068]

What Garn is it? Nice clean looking work.

Its a 2000.

 

[Buzz Saw]

I know this an old post but I'm currently installing a Garn 2000 and I'm looking for plumbing ideas.

@ Brad068 how are things working for you?

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[Buzz Saw]

Also Brad what's your hourly BTU load?

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