New water heater not getting hot enough
Newly installed water heaters often fail to reach desired temperatures because factory anti-scald settings restrict how hot the water can mix. This prevents homeowners from getting adequately hot water at fixtures like showers and leaves them searching for manual adjustments or cartridge fixes.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Turn the gas valve to a higher setting and wait an hour
- 2Adjust the mixing valve by loosening the screw and turning it counterclockwise
- 3Replacing the low-quality fixture with a better supported brand
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“The water throughout the house gets hot, but not as hot as I'm used to.”source ↗
“Hot water at the sink not at the shower. Can the white ring be repositioned to get hot water? I can’t find the manual or any video description of an anti scald. Is the cartridge in wrong? Or just Amazon/China garbage?”source ↗