Workshop Build #3: Laying infloor piping

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Blog entry by ~Julie~ posted 02-10-2010 04:29 PM 2478 reads 0 times favorited 6 comments Add to Favorites Watch
« Part 2: Preparing the foundation Part 3 of Workshop Build series Part 4: The pour »

In June 2008 it was time to start getting the in-floor piping and the electricity hook-ups into the foundation before the cement could be poured.

The wood stove that will heat the new workshop as well as our house will be placed in between the two buildings. It will sit at the side of the driveway approximately 50 feet north of the house and 75 feet south of the workshop. Since our hookups will need to be at the farthest side of the house, a trench needs to be dug about 75-100 feet each way from the wood stove location. This trench will house the piping that runs the hot water as well as electric wire from the house to the shop and another wire from the house to power the stove’s electrical needs.

Here you can see in the foreground is where it will go into the house and on the right where the stakes are is the spot where the wood stove will sit. In the background to the left of the tractor is where the new workshop is:
trench from house

This is the piping that takes the hot water and the corregated piping that holds the wire to supply power to the shop. The smooth 5” diameter pipe is insulated and carries two 1 1/4” diameter hot water pipes inside it (one takes the hot water to the workshop and the other returns it). So from the wood stove we have to send out the insulated piping two ways, north to the shop and south to the house. This is the trench towards the workshop, partially filled in:

piping in

A view taken from the deck on our house shows the two pipes coming out of the trench that will enter the wood stove:


After all was filled in, here is the mini foundation for the wood stove to sit on with the hot water piping as well as an electrical wire from the house, coming up through the inside:
woodstove form

The insulated pipe had to come up through the bottom of the foundation to connect to the infloor piping, this came through at the bottom right hand corner of the shop (southeast) along with the electrical wire.

All the piping had to be laid, which we did alongside the Heatmor wood stove dealer, who connected up the system. There are six loops, three heat the garage and three heat the workshop. The piping is attached to the wire mesh grid with plastic ties.

laying piping

piping in

Here is the piping coming out of the foundation area, ready for the concrete to be poured, after which point it will be connected to the manifolds, pump and control system.

piping control area

Now ready to get the floor poured!

... to be continued…

-- ~Julie~

6 comments so far

View Moron's profile


5032 posts in 3862 days

#1 posted 02-10-2010 04:48 PM

right on julie

you must be excited.

After three years with originalintentions of getting an outdoor wood boiler I changed my mind and got a gas fired boiler and it arrives today.

how cool is that. I put an extra line in so that when I use myspray booth, it trips a limit switch which activates an in wall radiator so that it draws in hot air.

-- "Good artists borrow, great artists steal”…..Picasso

View a1Jim's profile


117063 posts in 3546 days

#2 posted 02-10-2010 05:19 PM

That’s the only way to fly. a great way to heat a shop.

-- wood crafting & woodworking classes

View lumberdustjohn's profile


1263 posts in 3135 days

#3 posted 02-10-2010 07:44 PM

Nice project!
Nice tractor!
Outdoor furnace would be great.
Wished I would have done the tubing in my shop.

-- Safety first because someone needs you.

View unisaw2's profile


209 posts in 3004 days

#4 posted 02-11-2010 01:07 AM

If I had it to do again I would definitely do in-floor heat. Nice job.

-- JJ - Northern Illinois

View lotsaglue's profile


27 posts in 3038 days

#5 posted 02-11-2010 02:30 AM

It would definitely be nice to have floor mounted receptacles for some tools. Another thing that I always thought would be trick is to have the dust removal plumbing in the floor. If you did that you would have to know once and all for sure that is where you want your equipment. I went with mine in the ceiling and am glad I did for the number of time I have moved stuff.

-- Karl

View ~Julie~'s profile


607 posts in 3003 days

#6 posted 02-11-2010 11:05 PM

Hey Roman! The only negative thing about the wood stove is that I am not getting younger and the huge wood pieces I throw in it seem to get heavier!
John- Unfortunately the tractor isn’t ours, we rented it
Karl – I have a Clear Vue cyclone that isn’t yet piped in, but will run across the ceiling. I can’t imagine figuring out how to get it in the floor with the heating pipes there.

-- ~Julie~

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