Need help on explaining "Turn down to"

[Lucky Strike]

Looking at inserts and just a little lost on terminology. Looking over the Regency catalog and they have the following specs listed for the Horizon hri6e

Input BTU: 38,000
Turn down to BTU: 25,000
Efficiency: 73%

So does this mean it uses 38k BTU and outputs 38k*.73=27.7 BTU on high? That part makes sense but I'm just not sure if the 25k "turndown to" number is the lowest input amount, which would give a low setting output of 25*.73=18.3 BTU on lowest setting

OR does turndown mean that 25k is the range of adjustment so it can go down to 13kBTU input and 13k*.73= 9.1k BTU output on its lowest setting.

 

[ABMax24]

Looking at inserts and just a little lost on terminology. Looking over the Regency catalog and they have the following specs listed for the Horizon hri6e

Input BTU: 38,000
Turn down to BTU: 25,000
Efficiency: 73%

So does this mean it uses 38k BTU and outputs 38k*.73=27.7 BTU on high? That part makes sense but I'm just not sure if the 25k "turndown to" number is the lowest input amount, which would give a low setting output of 25*.73=18.3 BTU on lowest setting

OR does turndown mean that 25k is the range of adjustment so it can go down to 13kBTU input and 13k*.73= 9.1k BTU output on its lowest setting.

High is 38,000BTU input, low is 25,000BTU input. Heat output would be those numbers times the efficiency. Gas appliances are almost always rated at the gas input rating.

 

[ABMax24]

Also curious about your user name, I used to work with a guy that had that as his company name.

 

[ABMax24]

Also seen this on page 9 of the manual, it appears that the lowest setting increases to 30k BTU if using propane.

 

[Lucky Strike]

Also curious about your user name, I used to work with a guy that had that as his company name.

Thanks for the info, very helpful. Nope this user name is just a random one, not related to any business name.