My natural gas wall heater turns on for a minute and you can see the flames lapping on the outside of the metal box that goes up the wall. Then it goes out
HI turn it off you have a blocked flue . you have flame roll out possable fumes coming in to the room do not use this get a gas fitter in to fix this asap
Answers & Comments
HI turn it off you have a blocked flue . you have flame roll out possable fumes coming in to the room do not use this get a gas fitter in to fix this asap