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Easyjob 11-13-2011 10:26 AM

Heating
 
Want some help on making the decision about rinnai

DangerMouse 11-13-2011 10:49 AM

Hi and welcome to the forum.
Most of our members are DIYers and would have absolutely no idea who/what rinnai is. (On demand water heaters)

Also, this post should be in plumbing section. I'll be happy to move it for you if you wish, you'll get hundreds more views there, and far more opinions. :)

DM

Easyjob 11-13-2011 10:53 AM

Quote:

Originally Posted by DangerMouse
Hi and welcome to the forum.
Most of our members are DIYers and would have absolutely no idea who/what rinnai is. (On demand water heaters)

Also, this post should be in plumbing section. I'll be happy to move it for you if you wish, you'll get hundreds more views there, and far more opinions. :)

DM

Thanks I'm a newb

DangerMouse 11-13-2011 10:54 AM

Not a problem, that's why they pay us the big bucks here. :laughing:

DM

Easyjob 11-13-2011 11:00 AM

Quote:

Originally Posted by DangerMouse
Not a problem, that's why they pay us the big bucks here. :laughing:

DM

Yes it is the rinnai heating hot water system. Just wanted to know if anyone out there has it, and pros/ cons

DangerMouse 11-13-2011 11:02 AM

From what I've seen here on the forum, opinions vary as to how well they can keep up with demand, but overall, they seem to get good reviews. (Not mentioning any brand names though)

DM

Easyjob 11-13-2011 11:14 AM

Quote:

Originally Posted by DangerMouse
From what I've seen here on the forum, opinions vary as to how well they can keep up with demand, but overall, they seem to get good reviews. (Not mentioning any brand names though)

DM

I have lots of lit and pix on the system but no straight talk. Would actually like some kind of input .
Plumber seems to be more a sales person. HD has the water heater but not the combined system.
According to specs its 96% efficiency . Well keep looking thanks

raylo32 11-13-2011 11:16 AM

I am a DIY and I know what Rinnai is! Before replacing my water heater (with a conventional tank type) I looked into getting an on-demand water heater. Things I learned: You need to get a very large one if you have a lot of demand, especially if the water going in is really cold like it can be in winter. Second, they have very powerful gas burners, usually a good bit bigger than for your furnace, so they will be loud and more than likely need a larger gas line from the meter to your manifold. In my case that would have meant a lot of drywall removal. Then there is the venting. Lots of requirements to meet. Best to have an external intake, too, so that monster burner doesn't have to pull a lot of cold dry air into your house.

One option with these is to get a model approved to mount outside, preferably not too far (but at least as far as req by code) from the gas meter. Might need a good bit of plumbing to connect up to it, tho.

Anyway, with all that I decided to get another tank.

DangerMouse 11-13-2011 11:18 AM

See? I told you you'd get quicker answers over here! (Thanks raylo32!)

DM

raylo32 11-13-2011 11:50 AM

Glad to try to help but rereading his subject line I am not sure we addressed the OP's question. He may be asking about applying an on-demand heater for hydronic heating, not potable hot water. Hard to tell w/o more info. I suspect, but don't know for sure, that using one for heat would not need as large a burner and the gas line sizing might be less likely to be an issue. If this is his question the thread should probably be over in HVAC.

DangerMouse 11-13-2011 11:54 AM

Good point. Hard to say either way until/unless he comes back.

DM

Easyjob 11-27-2011 11:48 AM

I really wasn't sure what to do. I know that my system is not efficient and the cost of heating wouldn't change for the best.
I had my heater winterized like I always do. While talking with the plumber I told him about changing the system to on a combination
on demand heater hot water. I mentioned Rinnai he said it was a good unit but there were just as good and less expensive units
that they would be able to maintain.
He sent me to his plumbing supplier and I had a great education with more literature than needed. He also was willing to send me to
His customer's home so I could ask any questions I need to know.
I chose a less expensive unit with a 95% efficiency rating and energy star hoping to be in time for the $1600.00 rebate.
Thanks for being there. You guys are great


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