Tankless water heater

[ortho1121]

I was told my Rinnai tankless gas heater requires 2 gpm to operate. I changed the flow restrictors and the showers work fine. If I run a bathroom faucet at a low volume I can't maintain hot water. Any suggestions.

 

[Tuttles Revenge]

Older tankless water heaters did require a Lot of flow to kick on. One of our clients had us install a recirculation valve that they have a switch in the bathroom and kitchen to create enough flow so that when the faucet or shower kicks on, the tankless does as well.

 

[Sponsor]

 

[John Gayewski]

A faucet that runs at least 2gpm would help, but I like tuttles idea.

 

[Fitter30]

What's the complete model number?

 

[BulWil]

@ortho1121 Any luck with this? I may have an idea. As above, what model number of your Rinnai?