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This only works if you have a thermostatic mixer or consistent temperature of your hot water. The gold standard is a pressure-balanced thermostatic mixer, whic
by jaggederest 8y ago
This only works if you have a thermostatic mixer or consistent temperature of your hot water.
The gold standard is a pressure-balanced thermostatic mixer, which always outputs the same temperature at the same setting. Most of them come with two knobs, "temperature" and "flow". I miss the one I had a while ago.
- projektfu 8y agoI don't have a fancy mixer, but if your hot water heater is reasonably consistent and you have a working main pressure regulating valve, you should have enough consistency for this to work.
- jaggederest 8y agoIt's funny because you'd think that'd be the case, but in practice the difference is night and day. Thermostatic mixers will often have a temperature dial on the output, and it'll be within ~2 degrees of that temperature as soon as the hot water available exceeds that temperature.
- pdpi 8y agoEven without a thermostatic mixer, “good temp” is unlikely to be freezing cold or scalding hot. It’s a good enough first approximation that you can correct after you jump in