Lossen the motor belt so nothing blows. Throw the breaker, or if your wife
is wise of that leave the breaker on and trip the switch that controlls the
funnace(the light switch one). Open up the thermostat and remove the mercury
container that adjusts the settings. Disconnect a low voltage wire that goes
to the thermostat.
Or make a fake web site that says the model of furnace you are using has a
tendancy to blow up after 29 years.
Thats my effort.
This is the way I look at it. I have a 30 year old furnace that cost me
about $200 a month (for 6 months) to heat my house. If I install a new high
effifancy furnace for $4500+ how long will it take me to save $4500..... A
very, very, very long time.... Keep the furnace until it breaks..
Run numbers for her, yours when new was 80%, it is now likely 70- 75%
efficient, dirty burner and clogged-dirty coils. New 94.5% efficient
units with VSDC blower could save you maybe 25% on Ng and 10-20% on
electric. Figure in maintanance, things braking at -20f or a complete
exchanger failure which at 30 yrs is going to happen sooner or later,
and the excessive cost you will pay when the heating season is raising
furnace prices, Now double the price of the utilities 5 yrs out, and
figure a 20% increase this winter, if she is blind to the benefits pull
a fuse, remove a wire.
On Fri, 28 Jul 2006 04:21:56 GMT, email@example.com (mnbarrister) wrote:
How about the truth? That furnace has an expected lifespan of 15 to 25
years. If you replace it before it fails, you can shop for the best
quality unit at the best price. If it fails in Mid-winter, you will be
paying top dollar for whatever piece of crap you can get installed on
short notice. You will not be in a negotiating position. If it's on a
weekend, you will be paying double time for the labor, as well. Best
of luck to you.
This is the one of few reasons I'd see for replacing a well-working but old
unit, if the efficiency numbers didn't point to it. About the only other would
be if it were part of a general renovation.
But it depends - what is the relationship and level of trust with one's
oil/gas/HVAC provider? What is the climate? What is the homeowner's tolerance
for a cold weekend at worst? Is the water heater separate?
I'd still lean to keeping the older furnace, if it's working well. Of course
there *are* reasons to replace things, even if they're still going along, but
one has to ask oneself how much of the urge to replace comes from the appeal of
the shiny and new.
But then again, I've always kept my cars and trucks for a decade or so,
maintained them well, and come out ahead...
Sounds like a nice marriage -- can't come to a mutual, intelligent,
reasonable conclusion, can only trick one another into getting what you
want. BTW, I have a 30-year-old Lennox and got three estimates for
replacement recently. Using actual bills for last winter's heat
(rather than guesstimates about the furnace's current efficiency), the
BEST potential savings calculation was that it would take 15-16 years
to pay for the new furnace (approximately 10%/month with a $200 fuel
bill). So yes, it would pay back eventually, but as a fairly long-term
investment. Nothing like the "few years" claimed in some of these
postings. Every one of the salesmen switched in midstream from the
"you'll save huge money" to the "you'll be more comfortable" tactic.
our lennox duracurve 60+ or whatever dates back till about 1965 before
we lived here.
it works fine.
a new high efficent will save gas but probably cost more in maintence
still i want to replace it mostly to get central air which would be a
pain to install in this old furnace
OK, so I let her wear the pants sometimes...it's when she takes them
off that gets my attention! It's give and take guys and she can
Now, she is also an engineer so no dumb blonde ideas...I need to break
it so she won't know it.
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