Price comparison ? Gas Heater UPGRADE

Tunesmun

Active member
Jul 10, 2018
25
NJ
this is what they installed :

MasterTemp High Performance Heater 1 HEATER
400 Thousand BTU Natural Gas, low NOx emissions


what would you think they should charge me for upgrading to :
Pentair ETI 400 High -efficency
 

JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
17,624
Tucson, AZ
Pool Size
16000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
A lot.

The eTi is a dual heat exchanger system with direct fire titanium coils. It’s way more complicated than the MasterTemp and I don’t think the efficiency savings will justify the upfront cost and the expense of replacement parts over the life of the unit. Maybe if you were building some kind of commercial pool it would make sense. But fir a residential pool, it’s overkill.
 

JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
17,624
Tucson, AZ
Pool Size
16000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
If you believe the efficiency data then your looking at a 400,000 BTU/hr rated heater with a copper coil that gives you a usable 360,000 BTU/hr of heat versus a titanium system that gives you 95% efficiency or 380,000 BTU/hr of usable output heat. So you would be saving about 20,000 BTU/hr.

Most residential gas is priced in $/Therm. 100,000 BTUs = 1 Therm. So your savings would be about 0.2 Therms per hour. My gas costs roughly $1/therm. So the savings for my situation would be about 20¢/hr of use.

A MasterTemp 400 online pricing is about $2800. The eTI 400 looks to cost around $6,000.

($6000-$2800)/(20¢/hr) = 16,000 hours

So I would have to run the heater for 16,000 hours to break-even on the investment. Doesn’t sound like much but one rarely runs a heater for more than a few hours per week. Therefore the number of pool season the heater would need to run problem free would far outstrip the useful life of the heater.

It makes no sense from an ROI perspective.
 
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