Ultra - 155,000 Jun 06, 2016

My suggestion is to have a very experienced high efficiency furnace plumber install the unit. From what I now know all aspects of the system need to be in balance to work properly. My unit is exceptional and my wife likes the colored pictures designating the various modes of operation.

Owner, Custom Made Jul 12, 2016

I replaced a Dunkirk XEB-3 (20 yrs. old) with the Dunkirk boiler above. The new one is all most identical to the old one, that is the pipes were located same as the old, so gas and water lines were easily plumbed. The old electrical wires could be used although lengthened to connect to the digital controls. The circulators location has changed, it's still provided with its wiring provided. Venting is the same as the old one. I was happy to get another Dunkirk that installed easily.

Not Bad But Not Impressed Either. Sep 30, 2016

Bought the 150 cfm unit with 6" duct for a lot of air movement. Only needed 80 to 100 cfm unit as per professional installer for size of my bathroom. Although unit is very quite and was easy to install I'm not sure it was worth the money for amount of air it seems to move. Also has about a 10 second delay when turning on. Nothing in product description tells you about this delay.

Quality Aug 12, 2016

Have used Runtal UF series before and the quality is excellent. Now if they could sneak more BTUs per foot.

Great Heater I'd Buy Again😎 Aug 12, 2016

I replaced my old Modine heater, with a new Modine heater and it works great. The old one, the only thing that went wrong with it, was one of the fan blades broke in half . The old one , didn't owe me nothing, I had it in my shop for 38 years.