Bought this heater to heat my shed but, my house heater needed to be taken in for servicing. So, I am currently using this heater to heat my small house. So far its been running about 50 hours and outside temperatures are just hitting freezing. Its keeping the inside at about 71 degrees F. Haven't experienced any issues as of yet. The cons are as follows, muffler was missing (but I don't really care) I have it running as thermostatically controlled. But when it reaches the set temperature, it doesn't shut off. Instead these will only lower the power heat setting until it reaches a minimum. But will stay running until manually shut off. It also for the first few initial start-ups has a plastic chemical oder. But this is pretty much disappeared now. Fuel consumption seems pretty good. Burns clean. Fuel pump makes a clicking sound but its outside where I cannot hear it. At the price, I'd say its pretty good and totally worth it. I ordered a second one for when or if this one has any issues. At 119 dollars, its worth it to just buy another for any future problems. I am powering it with a Samplex Power SEC-1223BBM with a battery backup. This is for safety incase of a power outage as they are common in my area. Overall, i say this is a good buy. 50 hours so far and zero issues while heating a house. Update: this heater now has over 250 hours of run time heating my house. No issues and no longer puts off any weird smells. Have been running on heating fuel. Basically diesel. So far so good.