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20 Comments

1. Elaine G says:

   May 16, 2022 at 11:13 pm

   Boiler is a headache

   

   

   (1)

   Harmon Hydroflex 60 Pellet Boiler

   Pros

   • I have had the boiler for about 8 years now and it has saved me money on heating bills vs the oil system I had before.

   Cons

   • The unit has been a problem from the start. They supplied it without all the baffles in the heat exchangers (2 instead of 14), the installer did not install it to code and had excessive chimney length according to the manual (and refused to take responsibility for their mistake and fix it). Every time I clean it (which is required about every 3 weeks in the winter or I risk losing another fan), I curse whoever designed it and made it so difficult to clean. I went through about 4 blower fans in 8 years, none of them replaced through warranty. I've replaced the combustion chamber steel plates that had holes burned through them (and the replacement ones are now too thick to sit properly and the little keys don't fit anymore) and the burn pot now has a hole developing through the steel. One of the heat exchanger baffles broke off near the bottom and clogged the entire heat exchanger a few years ago, which took the plumber quite a few hours to fix. My chimney needs replaced, is full of tar, and clogs very quickly due to the poor installation, we've had smoke issues in the house due to the fan, and poor chimney sealing. If cleaned very frequently, the boiler hobbles along, but I'm going to replace it with a different manufacturer's boiler (with the correct chimney length) at my own expense soon because I am just so sick of this difficult and dirty piece of equipment. I love my Harmon Pellet stove, but hate my Harmon Pellet boiler. Weirdly, the stove with half the output has a 4" chimney that has no problems, and the boiler with the 3" chimney required by the installation manual has had nothing but problems. Occasionally, the boiler doesn't start well right after cleaning and I recently had the house fill up with smoke. My boiler room has a fine ash covering everything from the messy cleaning requirements, and I am done with this incredibly dirty boiler. Some of this may be attributed to the poor installation, but the boiler is not well designed for easy operation or cleaning, and when used heavily (7 tonnes a year), it is a lot of work to maintain.

   Did you find this review helpful? Yes (2) No

2. Tim G says:

   December 22, 2021 at 10:11 pm

   Great Unit! Period. I bought this as a used unit this year and I live in Madawaska Maine in aroostook county up on the Edmunston NB Canadian Border. First thing is you need a well insulated house. Mine was built in 1998 and on the lake up here so the winds are whipping off the lake. The trick is to set the aquastat away from the unit about 10 feet or so facing the outside wall of the house. Second make sure your oil or gas primary burner temp is set way down. I have 3 zones and the house is well over 2900 sq feet. With ease the unit is heating my entire house and the Garage at 60 degrees. My house is at 70 degrees and its below zero and this baby is keeping up with ease. Really toasty! Man this thing is awesome! At through the roof oil prices this is doing its job well. I had it piped directly into the existing system so when the zones call for heat it just cranks. I have a big home for this system and they told me to ignore the BTU’s and its doing a fabulous job. I turned down my oild burner so it would stop kicking in to 130 degrees low, because the temp drops to around 140 even though its set at 170 and 185 max. The temp does drop but it keeps up well. I changed my fan blower immediately when I purchased it and bought 2 more to keep on the shelf. Fans do go on any unit they are constantly running, so buy a few spares ( they are 50-60 bucks) the pop right in and if you do not clean them regularly like required they will crap out on you. Clean them every 2 weeks religiously and they will keep cranking. Overall, saving some huge money this year and its well worth the investment!

3. Joe Truss says:

   January 6, 2020 at 11:50 am

   I WILL BUY THE HF60

4. james Blank says:

   April 20, 2016 at 3:07 pm

   I have one do you want to buy it cheap?? they are junk like the co. that sells them and makes them

5. james Blank says:

   January 6, 2016 at 3:04 pm

   how long a guarantee do you have on the firepot for harmin flex 60 pellet boiler?

6. Jason says:

   January 21, 2015 at 11:26 am

   I have a few questions about the Harman Hydroflex60 combustion blower. I have had the unit for just over two years and I am on my 4th combustion fan. It is making a lot of noise and it seems to be time for another fan (after just 4 months). The last 4 fans were installed under warranty, but now it is my turn.
   1. Do I need to buy just the fan blades or do I need a whole new motor?
   2. Has anyone found a solution to making the fan last longer? (my next try will be to avoid cleaning it because this time the noise began immediately after a cleaning).
   3.Are there any good videos/how-tos on replacing the fan? Please provide links if you know of one.
   Thanks for any help you can provide.

   FYI. I live in coastal Maine and heat a 2200SF house exclusively with the boiler, including hot water. We use 8 tons of pellets per year.

7. Jason says:

   January 17, 2015 at 12:04 pm

   I have a few questions about the Harman Hydroflex60 combustion blower. I have had the unit for just over two years and I am on my 4th combustion fan. It is making a lot of noise and it seems to be time for another fan (after just 4 months). The last 4 fans were installed under warranty, but now it is my turn.
   1. Do I need to buy just the fan blades or do I need a whole new motor?
   2. Has anyone found a solution to making the fan last longer? (my next try will be to avoid cleaning it because this time the noise began immediately after a cleaning).
   3.Are there any good videos/how-tos on replacing the fan? Please provide links if you know of one.
   Thanks for any help you can provide.

   FYI. I live in coastal Maine and heat a 2200SF house exclusively with the boiler, including hot water. We use 8 tons of pellets per year.

8. Barb says:

   January 9, 2015 at 11:33 pm

   HydroFlex 60. Does anyone know how to fill it with water?

9. Jay says:

   August 11, 2014 at 6:41 pm

   Hello John Reynolds,

   I am in Connecticut and in process of getting Hydro60 upon research I have read couple of reviews about Hydro60 and they seems to be good until I stumbled on your review I am curious to know what made you so unhappy about Harman Hydro60, Also if you could tell me how many total feet of baseboard you have throughout the house, what is the square feet of the house. I will really appreciate it.
   Thank you
   Jay

10. James Hutt says:

    February 13, 2014 at 12:44 pm

    Hi I have the hydroflex 60 in my home for years now, this year seems to be the coldest temps since we istalled this unit. I have noticed that the unit will not heat to the desired tempiture settings. I have the min at 180 and the max at 185F the unit will stop heeating around 145-150F witch is much less than the tempiture required to heat our huse. Any ideas on how to correct this??