76,000 BTU Output Prestige Excellence 110 Combo Boiler - Space Heating & Domestic Hot Water (Propane Gas)

Read all the product reviews... (not just from one source) and you will uncover a consistent theme.. Triangle Tube is the best. Titanium in ther SS heat exchanger... the most delicate part of a boiler.ALSO.... you won't find it at a better price. [...]

I installed this unit myself without any problems. I have had the 102k btu boiler for about four years now and it has performed nearly flawlessly. The only flaw that I've been able to find is when we have power outages along with brown outs or surges, it occasionally has to be reset, by pressing the reset button before it will fire again. In my area of MI we have a lot of power outages at least five per year. This has happened about five times in almost four years. I suppose if I had a surge protector on this line this may not happen. Now the good stuff. It's silent, you can't tell it's heating the house, the circulating zone pump is louder than the boiler. With the outdoor temp sensor it automatically adjust the circulating water temp so that it runs for long periods, not short cycling. The temp sensor allows it to modulate or burn at a very low btu rate on the 40-50 degree days and achieve the highest efficiency possible because the return water temp will be the coldest it can be. The only time you can even tell it's on is when it's heating domestic hot water. Even then you only hear a hum of the vent blower. If you're more than 6' away from it you can't hear it. OK some tech stuff. I'm an engineer and I did a lot a research before buying this unit. I believe I bought the best unit regardless of price. Triangle tube is the only unit that uses a 431 stainless steel heat exchanger. 431 SS contains titanium. This ss was developed for cycling corrosive environments such as heat exchangers and exhaust systems. Other SS will crack in these environments over time. Aluminum will oxidize and also crack over time. Another nice feature I liked is how the heat exchanger pump is integrated into the boiler. This saves quite bit of plumbing and wiring time. So if you factor in an hour or two labor savings, the additional cost of the pump and plumbing materials you can take that off the total cost when comparing it to others. This boiler also heats all our domestic hot water. I use a 36 gallon Smart 40 indirect water heater. The boiler is able to keep up with five back to back showers M-F and often a load of laundry at the beginning or any time in between. It makes enough hot water that it would supply endless hot water for a single shower or at least 30 minutes of dual showers. When I say back to back, we have three full baths, and typically there are two and sometimes three showers going at once, and we all get hot water. I did have to put the shower flow restricttor that it came with back into my daughters shower so all five of us could have hot water, she often takes 15 minute showers. I would recommend this this boiler to anyone.

The cream of the crop! I did a lot of research on heat sources for the home hydronic system I designed. It works great. We're thrilled!