Hello All

Carbon12 back on the air. Hitzer 983 hand fired fireplace insert served me well but now I'm in a new town and have gone over to the dark side. I bought a previously enjoyed (Just like my Ex Wife whom I'm suddenly back together with after being divorced for 14 years! Lol!) stoker boiler. A Keystoker KA-6 to be exact. Thanks Hollyfeld!!! I'm going to be installing it next to an oil fired hot air furnace. I need to do some calculations to order a hot air coil to place in the plenum of the existing oil fired furnace. Since the boiler is completely disassembled, is there anything special I could/should do to clean the beast before installation? Any advice, as always, much appreciated!

Looks like 16"x16" or 16"x18" would use all the BTU's a KA-6 can generate. But the article states that you should buy the size that fits your plenum with a tad to spare on each side.

http://www.altheating.com/exchangers.htm

http://www.outdoorstovesupplies.com/Categories.bo ... ter-to-Air

Thanks for the info lsayre!

Whoa...hold on there...Sizing the water to air heat exchanger takes in some factors that are sometimes variable.

You need to know three biggies...water temp delivered, water flow rate through it and the c.f.m. of air across the coil. Don't get even one of these wrong or you'll be crying in your beer.

And further more, you may actually need to make the duct/plenum larger around the heat exchanger than the existing duct to get your required size H/X installed.

And remember...if you're also making lots of DHW on a 0* degree day then the water temp delivered to the coil may not be what was figured and that's not the day to find that out.

Next to the boiler...the H/X is very critical to home heat comfort.