How many fixtures can the Gasmart E run at once?

At 7.6 GPM and 199k BTU it can usually supply two showers or a shower plus a running appliance in mild climates. In cold incoming water, expect to run fewer fixtures at once.

Does it work with low water pressure?

Yes. Its 3.6 PSI low startup ignition lets it fire on weak pressure, which helps on well systems and upper floors. Check that your flow still meets the minimum for the burners to stay lit.

What power does it need?

It plugs into a standard 110/120V outlet and draws about 12 amps for the electronics and fan. It does not heat with electricity; the burner runs on natural gas.

Is it good for cold climates?

It has freeze protection, but that only guards the unit itself. In hard freezes you still need to protect exposed pipes and follow the manual's drain-down steps if the unit is in an unheated space.

What comes in the box?

The heater and a hardware pack for mounting. Venting, gas connectors and water fittings are usually bought separately to match your installation.

Can I install it myself?

Most homeowners should not. Gas line sizing, venting and condensate handling need a licensed installer and often a permit, and mistakes void the warranty and create safety risks.