Gumbo said:You sound disgruntled. Perhaps you should have bought a cheaper stove with no draft adjustment. Then you wouldn't have anything to be upset about. If your stove is installed and running well then you don't have anything to worry about. If you have a lazy flame or low burn, try giving the draft adjustment 1 turn. You will see a difference. I can't imagine Harman manufacturers expect everyone to purchase a draft meter to install their product. The stove will run just fine. If you fine tune the draft adjustment it may run a little better. Just think of all the money you saved installing it yourself. I'm not siding with the manufacturer but it was your choice to buy their product. At least they give you the ability to adjust your stove where others simply do not.
Really, if you have no positive advice for someone looking for help, then just simply shut up! DONT'T WORRY ABOUT THE DRAFT VOLTAGE BS. I installed my Harman XXV myself, plug and play. Works fine.