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Jack

Jack

Joined on March 1, 2007

Last Post on April 20, 2014

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The HX is Stainless.

@ July 18, 2013 12:07 AM in Rinnai boiler

Rinnai has a few different combis. The 75 & 110 use a plate HX for DHW. The 175c has a 6 gal indirect and the new Q85 & Q130 Premier's have a 24 gal indirect. What were you quoted?

Thank you!

@ July 10, 2013 4:23 PM in Thoughts on these new products?

Much obliged for the info

Indirect temps

@ July 9, 2013 7:06 PM in Indirect temps

What temps do you generally set your indirects? Do you add tempering valves on them?

I'd suggest

@ July 4, 2013 4:03 PM in Buy wall furnace or use existing radiant heat?

A Rinnai Energysaver, possibly 2 in each apt. I'd also look at Tjernlunds Airshare room to room fans. To get away with one unit positioning will be critical.

My general disclaimer, I represented Rinnai in my business for many years and consult with them still, so bias noted. I do heat my home with them however;)

Appendix E of NFPA 31

@ June 25, 2013 9:12 PM in 6" Boiler Exhaust w/ 5" chimney liner. how bad is this?

Bob, you are correct that the Appendix is "not a part of the code". That said, over the years I've talked to many people and been involved in many installs where the sizing in Appendix E worked perfectly. Many of those used 4" liners or pellet vent.

These tables were initially put together by Rich Krajewski and John Strasser at Brookhaven. I think they should have been adopted in '93 or '94 when first presented, and when I was on 31 I voted for them. Instead, 20 yrs later we still do not have lining standards for oil. The code says it must be the same size as the breaching. Not much science that I can see behind that rote statement. It's just the way it has always been.

Contact the manufacturers

@ June 13, 2013 9:29 AM in Bridging the gap Hydronics to AC

And their local reps. Of the majors, Fujitsu, Mitsubishi and Daikin, Fujitsu is in N NJ and have regularly scheduled trainings. As well, the local reps, Wales Darby have a training facility and also provide training.

I think this an excellent move on your part. Become really good at these mini-split systems and specialize in them and it is, in my opinion, all up-side for you. Good luck!

I'm surprised that you are almost always at the minimum

@ June 9, 2013 7:22 PM in Ductless AC / minimum line set lengths

I will reference Fujitsu as that is what I know best. Laying the line set off in a serpentine manner behind the unit is best. Coils are absolutely a no no. Traps oil. Increasing the line set may be convenient for you but if you call engineering asking for a charge on an up sized line set they won't even talk to you. They will simply say install it per the specs. The mins are 9' for 9, 12 & 15 kbtu units. 18 and up is 16'. Confirm those numbers?

The first year the inverter units came out, we were told that you could get a resonance out of the evaporator if the line sets were to short. Some time later I was with one of the Japanese engineers and asked him what the noise was. He said it was the compressor telling you it is unhappy.

I'd suggest sticking to the specs for warranty support.

Resurrecting a 9 yr old thread?

@ June 7, 2013 11:41 PM in Rinnai Water Heater Leaking

You can ask a "new" question. You say the pressure relief pipe is leaking. I have to say that on a tankless that is exceedingly rare, at least in my experience. What temp are you running, model #. With a leaking prv after 13 mos, I'd replace the valve while also checking gas pressure and water pressure. Do you have high water pressure? Temp and pressure being directly proportional adding temp to a high pressure system might trip the prv

Do the suggested flow test

@ June 4, 2013 8:00 PM in Tankless meets Jacuzzi: who wins?

And determine the vol of water needed to fill your tub. A 199kbtu condensing tankless will make around 6gpm at a 70* rise (50-120). If you sit in a bathtub over 105* you are no longer bathing, you are parboiling. So at a satisfactory bathing temp you should be in the 6.5gpm to the tub. Will the tankless fill the tub? Yes! How long to fill the tub you have to test and report back.

Every time...

@ May 26, 2013 1:38 PM in By special request.

I begin to think I'm a pretty smart guy I find myself in a place like this!

Done

@ May 21, 2013 6:10 PM in Kitchen sink vent

& Thanks!

As an option

@ May 19, 2013 9:52 AM in Floor mounted tub spout

I had a Victoria Albert tub, the Asia model, which is their clawfoot type. I used the block bases though. I also used their free standing "Faucet Tower". It worked out pretty well...if you have the space.

I'm in the middle of the kitchen and bath(s) re-model and found the same tub as a display close-out. Bought it again and this time will use a deck mounted faucet next to the tub at the center. I will have to kinda shape the wall protrusion, but it should be a better detail.

Those long faucet risers just give me the willies. Good luck with your install

Yeah, you screwed me up

@ May 19, 2013 9:43 AM in Order of Catagories on the Wall

I kinda had an order that I've been running the topics for a long time. The Wall, boom. AC, boom. Radiant boom. Gas, oil, dhw, boom boom boom. I could scroll the topics with my eyes closed after a lot of practice. Now I have to really pay attention again. Nice going!

Kitchen sink vent

@ May 18, 2013 10:26 AM in Kitchen sink vent

I have an 8' window in the new kitchen. The kitchen sink is centered in that window and the window is at counter height. This would give me a 5' vent arm below the rim. How would you vent it?

Based upon a few

@ May 15, 2013 9:41 AM in Plumbing Forum?

of my recent posts, it would certainly be helpful to me;) I came up through the plumbing trade and was a contractor, but not having worked with the tools for a long time, why, things have changed. I would like to see it and will contribute as I can.

Individual room control

@ May 12, 2013 11:47 PM in What is the most effective heating system for Schools & Intermittent use buildings?

I'd suggest that you look at Rinnai Energysavers in each room. Modulating gas valve, modulating blower, programmable stat built in, very durable. Each teacher controls the temp in his or her own space. Check it out.

Any advise on pex....

@ May 10, 2013 10:53 AM in Any advise on pex....

I'm re-piping the house and running Uponor pex. I have the Milwaukee Expander. Wow, what a tool! I was able to 1" with the expander that I never could have done with the manual kit. Anyway, it is a manifold system. Longest run of hot water from my tankless will be 16' ;)

My question is, how are you terminating under the sinks, toilets for a secure mount? Any suggestion, much appreciated. I'm a copper guy by training and inclination, but water quality issues pointed to pex here.

Rinnai 85 & 130 QPremier

@ May 2, 2013 9:46 AM in Rumor has it

http://www.rinnai.us/boiler/product/qp130n

This is in the market now.

Register

@ April 28, 2013 11:01 PM in Fujitsu concealed unit

At Fujitsugeneral.com and all the tech data is available to you.

I would never add ductwork

@ April 21, 2013 8:03 PM in Radiant vs Forced Air

to an existing home. IN fact, I would never install duct-work n a new home. You basically have to tear the house down to do a "good" install. I would recommend that you move ahead with the boiler install and if you need cooling with a very effective heat side as well, that you look at mini-split heat pumps. Muuuucccchh more efficient, ultimate in zone control and quiet.

Fujitsugeneral.com and Mitsubishi.com are the two top brands.

BTW, you don't say where you are.

Years ago I was

@ March 22, 2013 10:42 AM in Noisy Carlin EZ gas conversion burners

With Pete Axeman in his lab and he was showing me the Carlin gas burner. It was very loud. He said, "watch this", and put on a 1'section of I think it was 4" pipe on the inlet and the burner quieted right down. Really an amazing difference. Maybe there is something here for the EZ as well

Yes, it is certainly annealed

@ March 8, 2013 10:48 AM in For your entertainment...

It was a very hot fire. I went over to bladeforum and got some suggestions on how to re-harden the ax head. It is back in something like its mild steel form. Also, S&N being out of business I am going to have to unlimber the spokeshave and make a new 18" handle. Just beginning the re-model/addition of new kitchen and bathrooms I need more projects.
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