Snow Melt modcons

GansDitrixGanher

Buderus

Don \"Grumpy\" Walsh

Looking for boilers

I have a snow melt project that is requiring 2.2 million BTUH. I need to find a modcon boiler that can take return water temps below 40°F. Do any of you have a suggestion or two?

ALH_4

Viessmann

Vitocrossal

heatboy_2

I would LOVE to see.....

.... this in a residential size. Can you imagine?

Don \"Grumpy\" Walsh

Alas me too!

There in lies the quandry. I need this for a residential application as well.

hot_rod

Aerco has some large mod cons

Unknown

[5] KBN-500 Knights will give you exactly what you want - built-in cascading sequencer. You can operate all five as one boiler.

As a rep for Lochinvar I know you will love this package.

MechTech_2

Cast Iron Mod Con

We've installed a couple of the Hydrotherm KN Cast Iron Mod Cons, and they have told us the minimum return water temp is 60 degrees F.

GansDitrixGanher

Cast iron has its limitations.

Hi Hot Rod.

MA

Rocky_3

We are snowmelting with return temps of around -25 (below)!

Three Munchkin 399's tied together with their Vision 3 control system. Doing snowmelt on a slab that a local pipe fabrication shop uses as an outdoor fabrication floor. They wanted it fired up for the first time when the temps were -25. Other than the supply/return thermistors freaked out and basically said "screw you", the boilers ran fine once we "fooled" the thermistors into thinking the water temps were warmer than they actually were (by unplugging the wiring from the embedded thermistors and plugging them into thermistors that were actually sensing the air temp) Once we got the boilers running and the heat exchanger warmed up, we plugged the wiring back into the embedded thermistors to get an accurate Supply/Return temp to the controls. Talk about condensing!
Rocky