Responded to a service call to verify operational status of a furnace and water heater after customer accidentally shut off gas supply. Both appliances were confirmed functioning correctly through operational testing - hot water demand successfully triggered water heater ignition and thermostat adjustment verified proper furnace heating function. Advised customer against partial gas valve closure due to potential equipment damage from improper gas pressure. Documented condition of Bradford White water heater and residential furnace with exhaust and condensate systems intact.
