In this project I’m making a water boiler so I can recover
heat that’s going out the chimney.
The parts used for making the water boiler:
-
1 tube 120mm diameter – 500 mm length – 2 mm thickness
.
-
1 tube 250mm diameter – 400 mm length – 2 mm thickness.
-
1 tube 50mm diameter – 170mm length – 4 mm
thickness.
-
2 pieces of sheet metal for the lids – 3 mm
thickness.
-
3 connectors threaded at one end – 3 mm
thickness.
-
1 pipe coupler used for connecting the thermostat.
After cutting the tubes the next step was to drill the holes
needed. In the smaller tube I’ve drilled
two holes at an angle so I can fit trough the 50mm tube.
In the larger tube, 250mm one, I had to drill three holes:
two at the top and one at the bottom. The holes at the top will be the ports
for: hot water out and thermostat, the hole at the bottom will be for water
return in the boiler.
Cutting the lids for the boiler was the biggest challenge of
this project because I used a metal cutting blade in my jigsaw and a metal file
to make adjustments for the inner circles. For the outside circles I could use
my angle grinder to make adjustments.
The dimensions that I’ve used are not random , I’ve
calculated the volume of water inside the boiler to be a bit more than 15
liters.
After preparing all the parts the next step was to weld them
together and for this process I’ve used my mig welding machine.
The final step before installation was pressure testing the
boiler for leaks and I can say that I was released to see that I didn’t had any
leaks.
Installing the water boiler was challenging because I had to
do all the plumbing work but the end
result worth it.
Bellow you can see the block diagram of the installation
that I’ve made.
Thanks for reading.
