Heat source for small radiant job

Joe Mattiello

Simply Red was on to something. Certainly you can use the X-pump block for the radiant loop, using the DHW heater as the primary heater, and the X-block as the interface secondary heater for the radiant loop. The X-pump block is equipped with an integral heat exchanger to prevent the DHW from interacting with the radiant medium. Providing you use an oxygen barrier pex tubing you can use ferrous components on the radiant side reducing initial setup cost. Incidentally, this is a great way to introduce a Hydronic system to a customer with forced hot air. For your reference I attached some literature on the X-pump block.

Jim P

Heat source for a small raidnat job?

I am doing a small radiant job with a btu loss of 13,000. What kind of heat source should I use? A previous contractor was going to use an instantanious hot water heater with 140,000 input( 10 times the btu power needed is a little overkill). I was thinking about an electric hot water heater. The customer does have gas in the house, and currnetly heats the house with forced hot air.

Thanks,

Jim

Mark_7

small rad

Lang make a combo electric heater unit with ciculator thAT might work just fine.

steveex

You have 3 options 1- solar 2- gas water heater 40 gal 3- very small gas hot water boiler. Your cost vary on each application. water heater system the cheapest, small boiler next and then solar with small indirect tank. Choose your weapon wizely.

steveex

I almost forgot, warmly yours has electric mats that lay on floors, under carpet, tile mud job or wood flooring, check it out i think its 10 amps for every 100 sf.

Simply Rad_4

Taco X block

If the job has a DHW heater use a taco X block and if you have to, use a flow switch for priority for DHW. It works great, relatively easy. The Xblock is an all in one componet, including outdoor reset.
Good luck
Jeffrey

Mike Dunn

small power plant

Both Triangle tube and Lochinvar have boilers that will modulate down in that area. 10K for the Lochinvar and 16K for the Triangle Tube

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Jim P

Anyone have any experience with using an electric hot water heater say 50 gallon as the heat source?


Thanks,


Jim

Chris S

small job

I did an install using a 40 gallon electric- worked just fine- 12,000 btu load. My choice was based on future renovations that will include a boiler install.
Chris

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