[Greenbuilding] Nyle heat pump water heater update

[Paul Eldridge]

It has been two hundred and twenty days since we installed our Nyle RO 
heat pump water heater, and I thought I'd provide list members with a 
quick update.  The little guy has supplied all of the DHW needs for our 
two person household and, with that, consumed 412.3 kWh or an average of 
1.87 kWh/day.  That's down from an average of 3.96 kWh/day for this same 
period last year when we heated with electric resistance.

We're relatively frugal in our hot water use, so the simple payback for 
us will be a little longer than most households, i.e., about ten years 
at current utility rates.  Even so, I'm extremely pleased with its 
performance.  We're now approaching that time of the year when we run 
our dehumidifier virtually non-stop to keep humidity levels in check, so 
to the extent that this HPWH reduces our dehumidifier run time, it will 
supply us with all the"free" hot water that we can possibly use.

BTW, according to the City of Halifax's Solar City website, the typical 
installed cost for a solar DHW system in these parts runs between 
$6,400.00 and $8,000.00 after all applicable rebates (source: 
www.halifax.ca/solarcity/).  And in speaking with one of their 
representatives, I'm told that I could expect such a system to offset 
perhaps one-half our annual needs. The Nyle, as mentioned, satisfies 100 
per cent of our requirements at an installed cost of just $1,100.00.  
Moreover, it would likely consume less electricity through the course of 
the year than what might be required to operate the circulation pump, 
control system and back-up electric element of a residential solar 
system, had we chosen to go this alternate route.  This is not meant to 
be knock against solar; rather, it's to point out that there are other 
options that are equally worthy of consideration.

Cheers,
Paul

Sent via my BlackBerry Q10 / Ce message fut envoyé avec mon BlackBerry Q10.