Joined on March 1, 2007
Last Post on February 28, 2014
@ October 8, 2013 11:23 PM in Any concerns about Rinnai boiler?The pump modulates before the burner to maintain a 36* delta T across the llh
@ October 8, 2013 10:35 AM in Any concerns about Rinnai boiler?Variable speed pump. The E series Combi's have a 3 speed Grundfos set to high to drive the plate HX for DHW. With the vari speed pump and LLH all that pump does is modulate flow first and burner second to maintain the delta T across the llh. That variable speed pump is also a part of the indirect equation for proportional DHW Priority when using the 3way valve.
@ October 7, 2013 10:58 PM in Any concerns about Rinnai boiler?ATAG, an award winning Dutch manufacturer of boilers and Rinnai share technologies and Rinnai supports the sale, marketing and technical support of the ATAG boilers in NA.
The 95+% efficiencies are real. Your concerns about high pressure drops and low flow rates show that you are not familiar with the product and it's features. To provide ease of installation and system flexibility all Rinnai boilers, with the exception of the new E50C, are supplied with a low loss header. That handles your concerns I presume.
The indirect can be piped conventionally or Rinnai's optional 3-way valve allows the use of the boilers primary pump to drive the indirect. Use of the 3way valve offers proportional DHW priority.
As to the cost, I think that if you review the features of the product you will have to acknowledge the excellent value Rinnai provides. Perhaps you should try a few and report back.
To the original poster I was the Rinnai rep in your area for twenty years, so I must acknowledge my bias. That said, I heat my home and hot water with Rinnai products.
@ September 29, 2013 9:53 PM in Noisy Carlin EZ gas conversion burnersAbout 20 yrs ago I was with Pete Axeman at his plant and we were looking at one of his boilers with a Carlin gas burner on it. Very noisy! Pete said, "Watch this". He put a 1' section of 4" gal vie pipe on the intake and I couldn't believe how it quieted down. We then tried it with a 4" 90 and the effect was the same.
@ September 22, 2013 10:18 AM in ac system design helpYou could do a multi unit and use the small concealed air handlers. They have very low static so position to minimize ductwork. Your other option is a minisplit and add a few Tjernlund Aireshares.
@ September 19, 2013 9:40 AM in High flow shower headsthe number of people who buy these high flow fixtures with nary a thought to what it will take to feed them. Anyway, 3- 199kbtu condensing tankless will handle it all day long, or until the septic system blows up. To me, tankless is the only way to do these. you end up with multiple units but you have the capacity to use the fixture for as long as you are doing your thing in 17 fpm. When you step out of the shower, Junior can wash his hands and the system will fire as low as 10.5 kbtu. No standby losses which is the problem with big storage.
I once had a guy proudly tell me that his shower head cost $5500. Total flow in the shower was 25 gpm. I proudly told him the equipment requirements to feed his play room. He was upset.
@ September 17, 2013 11:45 PM in Rinnai parts neededDescription of the unit, it is certainly worth getting "available" parts to repair. The 1001 hasn't been produced for at least 15 yrs. As parts cycle through the recommendation would be to go with a newer modulating burner and fan unit, if your particular need cannot be fulfilled. If I was told by distribution that a part was nla, I'd check direct with the factory before replacing...depending on the general condition and history of the unit .Some parts are just NLA at this point.
@ September 10, 2013 12:02 PM in Rinnai parts neededNelson & Small. 207 775-5666 in Portland, ME. They were the biggest sellers of the 1001 back in the day. That product hasn't been manuf for 15+ yrs now. I just happen to be at Rinnai today, so I'll go see what I can find, if it exists.
The 132 Air inlet elbow is available. The 1004F 520X03 is the right part number. The FOT-40-3. We just looked it up and you can use a part number 1004F-530X01 and use the current vent kit for the 1004 the FOT-151. The 151 is the standard vent which will adapt from a 4 1/2" to 9 1/2" wall thickness
That's the best I can do!
@ September 8, 2013 11:07 PM in Air compressorsKinda sorta off topic, but thought I'd ask. I've got a substantial structural steel project here at the house and all my compressor filtration gear got lost in the move west. What do you use to filter and dry your compressed air? I don't want to pump a bunch of moisture into my plasma cutter. Thanks for the help
@ September 1, 2013 10:52 AM in Electric Heat???Would be a propane fired Rinnai Energysaver. Easy install and easy to take with her on the way out.
@ August 25, 2013 10:51 AM in centro therm pipingI think, is not melting the pipe. Your problem is that when you have a fire you will be pulling the smoke into the intake of the boiler, and it will not be happy. Somehow, you need to separate these two systems.
@ July 25, 2013 9:45 AM in I Often WonderThe best approach is the direct approach. Call Jeff Pope and ask him. He's a good guy and he is accessible!
@ July 18, 2013 12:07 AM in Rinnai boilerRinnai 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?
@ July 9, 2013 7:06 PM in Indirect tempsWhat temps do you generally set your indirects? Do you add tempering valves on them?
@ 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;)
@ 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.
@ June 13, 2013 9:29 AM in Bridging the gap Hydronics to ACAnd 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!
@ June 9, 2013 7:22 PM in Ductless AC / minimum line set lengthsI 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.
@ June 7, 2013 11:41 PM in Rinnai Water Heater LeakingYou 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
@ 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.
@ 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!