Whole House Radiant Floor Heating Part II.

Whole House Radiant Floor Heating Part II.

 Whole House Radiant Floor Heating Part II.

We are now at the finishing stage for the floor heating and plumbing in this beautiful home on a beach of Lake Simcoe. You can see Part I of this project here.  Hydronic radiant floor heating and hydronic air handlers are providing all the heat for the whole house. The garage and the steps from the basement are also heated, nobody will break through the glass head first on slippery steps in the winter.

This is where the top floor's manifold will be mounted. 1" SharkBite O² Barrier pipe supplies each manifold with hot water from the basement. All of the supply and return are covered with Tundra insulation all the way back to the furnace room.
This is where the top floor’s manifold will be mounted. 1″ SharkBite O² Barrier pipe supplies each manifold with hot water from the basement. All of the supply and return are covered with Tundra insulation all the way back to the furnace room.
We add small air vents to the highest point of every supply line to ease bleeding the system of air when the time to fill up comes.
We add small air vents to the highest point of every supply line to ease bleeding the system of air when the time to fill up comes.
With all the pipes needed for drains, domestic water and floor heating we need are running out of joist space to keep them orderly.
With all the pipes needed for drains, domestic water and floor heating we need are running out of joist space to keep them orderly.
The main floor's radiant heating manifold will mount here.
The main floor’s radiant heating manifold will mount here.
All the 1" supply and return pipes for the whole house radiant heat are back in the furnace room waiting for the boiler. Every thermostat also has a wire running back to the controls.
All the 1″ supply and return pipes for the whole house radiant heat are back in the furnace room waiting for the boiler. Every thermostat also has a wire running back to the controls.
Once the drywall was on we could then staple down the tubing for the upper floor's heating.Since we are already inside the insulated space there is no need for additional insulation. The tubing is spaced at 9"
Once the drywall was on we could then staple down the tubing for the upper floor’s heating.Since we are already inside the insulated space there is no need for additional insulation. The tubing is spaced at 9″
The floor heating manifolds are also mounted and the tubing connected.
The floor heating manifolds are also mounted and the tubing connected.
Once the floor is covered with self leveling concrete there is only a hint of the floor heating manifold. Eventually a removable cover will be installed in front to provide access in case of maintenance.
Once the floor is covered with self leveling concrete there is only a hint of the floor heating manifold. Eventually a removable cover will be installed in front to provide access in case of maintenance.
It is time to start work on the radiant floor heating boiler room. We mount plywood and then checkered boards which will hold the hydronics. The Laars-Mascot Neotherm 399 Boiler will sit next to the electrical panels.
It is time to start work on the radiant floor heating boiler room. We mount plywood and then checkered boards which will hold the hydronics. The Laars-Mascot Neotherm 399 Boiler will sit next to the electrical panels.
Tibor needs to carefully measure and cut out an exit for every pipe and wire that needs to come through the checkered board. Here he is marking the window where the basement floor heating tubes will exit from the wall to the manifold.
Tibor needs to carefully measure and cut out an exit for every pipe and wire that needs to come through the checkered board. Here he is marking the window where the basement floor heating tubes will exit from the wall to the manifold.

 

Once the board is mounted we can start installing the hydraulic separator, the pumps and manifolds. The last step is installing the floor heating electronics.
Once the board is mounted we can start installing the hydraulic separator, the pumps and manifolds. The last step is installing the floor heating electronics.

 

We always start at the boiler and hydraulic separator as their position dictates everything else that follows. This boiler will also heat an indirect domestics tank for hot water.
We always start at the boiler and hydraulic separator as their position dictates everything else that follows. This boiler will also heat an indirect domestics heater tank for hot water.
The boiler loop taking shape. First come the outs for the two 60,000 BTU/h Air Handlers then the basement floor heating manifold then the upper floors' supplies then the heat exchanger for the porch and garage's glycol filled loops.
The boiler loop taking shape. First come the outs for the two 60,000 BTU/h Air Handlers then the basement floor heating manifold then the upper floors’ supplies then the heat exchanger for the porch and garage’s glycol filled loops.
Most of the floor heating hydronics are now installed, the only thing is the glycol side of the heat exchanger on the far right for the garage and the steps. The two 1-1/4" pipes and the pump is there for the indirect water heater. The water makeup with the double check valve and the boiler feed valve is below the expansion tank. On the bottom is the basement floor heating manifold.
Most of the floor heating hydronics are now installed, the only thing is the glycol side of the heat exchanger on the far right for the garage and the steps. The two 1-1/4″ pipes and the pump is there for the indirect water heater. The water makeup with the double check valve and the boiler feed valve is below the expansion tank. On the bottom is the basement floor heating manifold.
The glycol side of the heat exchanger is also on the wall, we need to connect the glycol feeder that will keep that side topped up with glycol all the time. The PEX tubings are not connected yet.
The glycol side of the heat exchanger is also on the wall, we need to connect the glycol feeder that will keep that side topped up with glycol all the time. The PEX tubings are not connected yet.
One of the two 60,000 BTU/h Air Handlers is visible on the left. They provide the heat source for the forced air part of the house's heating as well as the cold for the A/C.
One of the two 60,000 BTU/h Air Handlers is visible on the left. They provide the heat source for the forced air part of the house’s heating as well as the cold for the A/C.

 

To be continued.

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