For maximum heating
If you're trying to get the hottest water:
Use low-iron tempered glass if available.
Leave a small air gap (about 2–5 cm) between the pipe and the cover.
Insulate the back and sides well. That will give you the hottest and best results for DHW
2026-06-20 19:53:22
1
Handy Andy :
Wonder if it work on hottub as the heater has broke on ours 🤔
2026-06-20 12:06:09
1
The bearded Plumber :
Ask Michel fish
2026-06-21 19:33:56
1
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