Dude! you need to add another tube for the intake heat exchanger and mount it in your wood sill plate there so it runs more efficient and probably also extends its life. The return in my home is in my living room, hence recirc.
@ Recirculating air allows HVAC systems to operate more efficiently. By treating and reusing a portion of the already conditioned air, the system expends less energy compared to continuously drawing in and treating outdoor air. Recirculated air contributes to maintaining a consistent indoor climate.
If you had access to an infrared camera and time, perhaps you can do some further testing on a cold night to determine which configuration works best. I used to have an ir camera when i was employed but no longer unfortunately.
@Armenian oh, and extending life? The burner intake is completely separate from the heat exchanger intake. So your burner intake is still fresh voutside air, it's not damaging anything to pull in cold air to the combustion chamber. I'm seeing mid 350's heat exchanger temps. It's easily heating the building, and honestly... over heating it. Last night, I woke up to piss and it was 76 degrees. I ended up propping the front door open while I ran to the outhouse so that I could let the 29 degree air in to cook it off. And that was level 2, as low as I'm willing to run it.
I can confirm the Mcalroy diesel heaters are the best. I have the 2024 version of this heater and the only lame part is as the 3.5” hot air piping they use. Had to adapt it. Other that that, I was able to run it 17hrs straight on “3rd gear” and it only consumed 3L of fuel, or half a tank. My dog was toasty in his kennel 😂😂😂😂
The 3 5" pipe was done as part of the 2025 updates (actual release late 2024) that made it almost 30% increased heat output and at the same time burning more efficiently and consuming less fuel per hour. The 3.5" outlet allows more airflow, less airflow sound and with the increased airflow, more heat removed from the heat exchanger transfer fins. So while some complain about the 3.5", it's part of the magic that puts Hcalory at the top of the game in diesel Heaters as of November 2024. No one can currently compete, until someone steps up the game and finds the next way to revolutionize this particular market. But for today, Hcalory items it with the most quite units in the market that are also the most fuel efficient units in the market. Check mate. Hcalory wins.
@ ah good to know! I’m really happy with it. Expected a pile of shit I would have to work really hard to make work but worth the heat…. And nope, it runs like a champ. The app is surprisingly good, and the remote works really well too. Very happy. Cheers!
@SirDadbod Sure, you could. But what fool would give up silent heat, and give up positive pressure heat? What do i have to gain, a fraction of increased heating efficiency by heating the heated air? Let's get real, at around a gallon every 24 hours.... and at $3.05 a gallon.... who cares? I'll take positive pressure, silent heat for $3 a day every time.
Not sure why you wouldn't pipe the return into the space ? Would work much better
If you want to run it on low for the day put it on alpine mode for no worries about soot buildup
@Nomaswearefull
Your saying to use high altitude mode for level 1?
Dude! you need to add another tube for the intake heat exchanger and mount it in your wood sill plate there so it runs more efficient and probably also extends its life. The return in my home is in my living room, hence recirc.
@Armenian
I'd rather keep it as a positive pressure heat system.
@ Recirculating air allows HVAC systems to operate more efficiently. By treating and reusing a portion of the already conditioned air, the system expends less energy compared to continuously drawing in and treating outdoor air. Recirculated air contributes to maintaining a consistent indoor climate.
If you had access to an infrared camera and time, perhaps you can do some further testing on a cold night to determine which configuration works best. I used to have an ir camera when i was employed but no longer unfortunately.
@Armenian oh, and extending life? The burner intake is completely separate from the heat exchanger intake. So your burner intake is still fresh voutside air, it's not damaging anything to pull in cold air to the combustion chamber. I'm seeing mid 350's heat exchanger temps. It's easily heating the building, and honestly... over heating it. Last night, I woke up to piss and it was 76 degrees. I ended up propping the front door open while I ran to the outhouse so that I could let the 29 degree air in to cook it off. And that was level 2, as low as I'm willing to run it.
Exactly @@Armenian
I can confirm the Mcalroy diesel heaters are the best. I have the 2024 version of this heater and the only lame part is as the 3.5” hot air piping they use. Had to adapt it. Other that that, I was able to run it 17hrs straight on “3rd gear” and it only consumed 3L of fuel, or half a tank. My dog was toasty in his kennel 😂😂😂😂
The 3 5" pipe was done as part of the 2025 updates (actual release late 2024) that made it almost 30% increased heat output and at the same time burning more efficiently and consuming less fuel per hour. The 3.5" outlet allows more airflow, less airflow sound and with the increased airflow, more heat removed from the heat exchanger transfer fins. So while some complain about the 3.5", it's part of the magic that puts Hcalory at the top of the game in diesel Heaters as of November 2024. No one can currently compete, until someone steps up the game and finds the next way to revolutionize this particular market. But for today, Hcalory items it with the most quite units in the market that are also the most fuel efficient units in the market. Check mate. Hcalory wins.
@ ah good to know! I’m really happy with it. Expected a pile of shit I would have to work really hard to make work but worth the heat…. And nope, it runs like a champ. The app is surprisingly good, and the remote works really well too. Very happy. Cheers!
Can't you just keep it in the house and exhaust out like a pellet stove?
@SirDadbod
Sure, you could. But what fool would give up silent heat, and give up positive pressure heat? What do i have to gain, a fraction of increased heating efficiency by heating the heated air? Let's get real, at around a gallon every 24 hours.... and at $3.05 a gallon.... who cares? I'll take positive pressure, silent heat for $3 a day every time.
Nice job god bless