05/18/2023
This was an inefficient boiler in a Brigantine duplex that heated the baseboards and it also heated an indirect tank for the domestic hot water.
Being that this unit is in a small utility room, it needed fresh air for the burner combustion. So the door to the utility room was a bifold louvre door, which allows air from inside the house into the room.
The biggest issue with this set up was that the boiler ran hot at 180 degrees all year long, to keep the indirect water tank hot, to have domestic hot water at any given time. The boiler running constantly and the hot pipes caused the room to be 87 degrees in the summer time on a mild day.
The owners had just purchased the house last summer and called us out to check the AC because it ran none stop and couldn’t satisfy the thermostat at their 72 degree set point. I explained to them with the old set up and the louvre door to the closet, that it was like having a giant window open in your house on an 87 degree day.
This Navien Combi system doesn’t run at all unless the heat is running in the house, or someone runs the hot water(perfect being it’s a second home and will sit vacant most of the year). It also has its own fresh air intake so the louvre door can be eliminated if they wanted.
Not only will they save on their gas bill, save drastically on their electric bill from the AC not running 24/7, but they will also have endless domestic hot water and get a $1,300.00 rebate from South Jersey Gas.
