Build a heat exchanger yourself
Building a simple heat exchanger yourself is no magic. The prerequisite is suitable material and the necessary manual skills.
What you need:
- Pipe material
- Welding, soldering technology
- Connection fittings
This is what a heat exchanger can look like
- Each heat exchanger represents a container in another container. Only the design should be such that the heat exchanger has as large a surface as possible in order to facilitate the exchange of temperature. Both iron and copper can be used as the material.
- Achieving a large surface area is difficult with the tools of the do-it-yourselfer. The lack of special material is avoided by increasing the number of pipes that have to be installed. When it comes to the shape of the heat exchanger, the do-it-yourselfer needs to be creative.
How to build your own heat exchanger
- At the beginning, think about the amount of water to be circulated. That depends essentially on the performance of the circulating pump in question or on water consumption. The more water flows, the less time it has to heat up in the pipe system. The line length must then increase in order to achieve a good effect.
- So make sure that a sufficiently large amount of water can be transported and assemble a corresponding number of pipes to form a system. Take an old cast radiator as an example for the basic idea. The supply and discharge lines must be strong enough for the requirements, weak pipes are sufficient for the ribs in between.
- Bend the two strong tubes in the shape of the receiving container, or manufacture polygonal fittings that are drilled to accommodate the weak pipes and at one end be locked. Solder / weld a connection fitting to the other end. A 3/4 inch connection is sufficient for domestic use.
- Now solder / weld the weak pipes into the strong ones on both sides so that the water flow is always guaranteed. The longer the pipes are and the more you install, the more intense the effect will be. You can't spend too much, it's just a question of cost.
- Finally, you have to install the construction in the container in such a way that it sits in the middle of the water bath and is securely held. In the container you now build the inlet u. Discharges that are connected to the heat exchanger - done. An alternative is to make a helix, but this requires special material and bending technology.
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