My first Radiant install (Alpha phase)

Unknown

So one year after moving into my first house (and hopefully my last) with my sweetheart and two children, I finally gave in to her wanting to tear up the carpets. I put my lovely wife off for all this time knowing what a project it would eventually become.

Long story short,.. I am intending on takingup the old. bad hardwood, leveling the floor and putting down some radiant tubing with aluminum transfer plates before the new hardwood goes down.

My question to all of you is for the best piping arrangement to go on my beautifull new maple playwood mechanical wall. (Did I mention the existing heat source is a warm air furnace?)

I would like to install a system 2000 as the heat source and I am trying to decide between using a plate exchanger for the radiant zones to protect the boiler from low return water temperatures, or should I use a mixing assembly with return temperature sensors?

Downside to the plate exchanger is another expansion tank, water feeder, backflow, etc,..

Some other information,...

- I plan on using outdoor resent with this radiant to try and protect the new hardwood.
- Other heat emitters in the house will be panel radiators
- My house is 80+ years old and Im sure the joists will not take any concrete, so the only other rasiant zone in the future will be the master bath (we'll cross that bridge later after the second floor os built)


Thanks for your help in advance

I am working my way through "Modern Hydronic Heating" as well as Dans radiant book. Luckly theres no wax toilet seals to contend with on this job

Ray Landry

It's always fun customizing your house isn't it? I just bought my first house a year ago and love owning my own home... anyways in regards to the radiant floor heat, what is making you lean towards a EK boiler? I'm a little partial to buderus myself I'm not gonna lie. A G115 oil boiler with the logomatic controller and riello burner is a tough combo to beat. The 'pump logic' option on the controller takes care of cool water return temp issues, out door reset, hot water and more! You can even get a mixing card for 'circuit 2' to operate a motorized mixer. How many square feet is the radiant install going to be? IMHO a flat plate is only nescessary when you've got tube w/out an oxygen barrier. Primary/secondary piping or pump stopping controls are more logical cost effective ways to control water return temp issues. Good luck!

Unknown

The heat loss on the radiant space is 12,500 Btu/Hr Im looking for a program that will tell me how much tubing I need for that heat loss.

I have the Hydronic design studio, which as far as I can tell doesnt have that kind of calculation.

I'll look into the logo matic. I dont have that much experience with them. I have to get up to New Hampshire for some classes after the winter is over

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