2 days to decide on a tankless water heater. Help!
So we just bought a house, and everything in it is ultra high efficiency minus the water heater...which is 25 years old and can barely heat enough water to take a 7 minute shower.
Natural Gas, plenty of pressure, 1" ID supply line, horizontal vent, indoor application.
So...between our $8,000 cash back and the 30% efficiency rebate + state incentives, we want to go tankless. Last night we went to Lowe's and grabbed the Bosch 1600H
. It's on lowes credit, so no payments for 6 months (and the rebate check will be in before then, so no interest, plus we got a 10% off coupon from Lowes for moving, so $649-10%= like $589 or whatever.)(30% rebate = ~$165, so $424 total cost to us in the long run.)
We will be venting horizontally. The 1600H requires a fan assisted horizontal vent kit that costs *cough* $450, or available online for $379-$450. The vent kit is NOT eligible for the tax cut. We considered moving up to the next model (which is self vented), for like $1200, but the exterior vent mechanism is another $220 for that.
The amazon reviews on the bosch say in cold weather we'll be lucky to get 3gpm @ 120 degrees. The only thing that TOUCHES that kind of draw is the shower, and we can put on a new head. It uses a hydrostatic piezo ignition which is cool, (no energy use at all when not running), but the stinking vent will have to be wired anyway.
HomeDepot did NOT send us a coupon, but they have this Rheem
for $999, and it's self vented and doesn't require anything extra, AND its 63,000 btu's bigger and seems to have better overall ratings. No interest free credit, but I think we can afford 1-2 months of $40 a month until the rebate check rolls in.
SO we've got choices:
1. Buy the vent kit for the little Bosch. (~$900 total cost to us.)
2. Upgrade to the bigger Bosch. ($1200 total cost to us.)
3. Return the Bosch and get the Rheem. ($999 total cost to us.)
4. Something else as suggested by metafilter.
Obviously, decision has to be made by tomorrow night b/c that's the expiration for the tax credit.
I'm leaning towards the Rheem, but I'd like to hear your input.
(Oh, our house is a 1920 4bed 1 bath brick. DW uses 4.9 gallons per load, washer uses none to speak of, 1 bathroom, 2 total sinks. No plans for more water-using stuff.)
Oh, and yes, I'm aware we could go tanked for cheaper and/or improve the one we have. We'll be vacating this house probably w/i about 5 years, so this kind of capital improvement should serve to improve our value while making it so we can fill a cast-iron clawfoot tub with hot water enough to cover my junk. (right now we can't.))