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Joined on March 1, 2007

Last Post on July 23, 2014

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check out Airtec

@ January 29, 2014 10:30 AM in mini split heat pump install in wi.

mini-split brackets. I have two wall hung and one roof mount at my home. You can wall mount them to get them off the ground. You should elevate them to avoid the drifting snow. Also, while you think it will be used primarily for heating, which I get, you will also be using it quite a bit for the dehumidification. They can work indoors, but you need very large spaces (warehouse) to do it properly.

AHR attendees, What did you see?

@ January 25, 2014 11:04 AM in AHR attendees, What did you see?

What caught your eye? What is new? I'll go first...
I saw a new evaporator at Fujitsu that is low wall pin up, H/C dual fan so heat at the floor, cooling out the top. I think the seer was 25 or so and HSPF 12.5. PTACs beware.

In the software aisle I saw a pretty cool app from an outfit called Mypointnow called Venture. Quote schedule and bill as well as other functions from your iPhone/android.

I really enjoyed NY. I got in a couple days early and walked the city. In 2days I must have done close to 20 miles. Once it snowed, the first day of the show, traffic got kinda weird, so I kept walking. Chicago next year!


@ January 12, 2014 11:35 AM in Recommended contractor for bathroom renovation in Worcester, MA area?

Joe and Victor are excellent people and do fine work. I hope to see them at AHR.


@ January 2, 2014 12:02 PM in Rinnai Recall from 2008!

Call 1 800 621-9419 and tell Rinnai the model and serial number (on the gray strip on the lower side of the unit) they will pull up the number, arrange repair and pay for the repair. If there are more of these in the building Rinnai will want to do the same with all affected units. If so, please let your landlord know.

The serial number can be hard to read depending upon position. I find having a flashlight helps.

While I haven't used them on big stuff

@ December 29, 2013 11:31 PM in Large adjustble Monkey or Spanner wrench for boiler and pipe fittings?

as long as we are talking about cold and useful tools I have to put this up.

I have the 6 & 9" versions and cannot believe how well they work. Good tools aren't cheap, but once you start with these you will not believe the quality & value.

Simply amazing...

@ December 20, 2013 11:23 AM in Dan

I have these scrolling issues too. Now I don't. I just find out more and more about these machines all the time. They say you can save stuff on them too, but I'm not sure about that.

you can get

@ December 19, 2013 10:30 AM in Combi boiler dhw and heat or dhw or heat

"proportional" priority on some equipment. The boiler will make heat and on a call for hot water will shed some of its capacity to hot water. As the hot water load increases the heating side diminishes until it is all DHW priority.

Dan, don't mean to be putting words in your mouth, but...

@ December 14, 2013 7:46 PM in Hey Dan and my fellow wetheads

I think what you meant to say was, "Glad the Big hose is out, man"
Hmmm, that was fun!

Best wishes for a speedy recover and Happy Hoildays! David!

The manual

@ December 12, 2013 9:22 PM in Rinnai tankless woes

Is available at Select water heaters/model/documents and there it is. 10 indicates a high entering air temp. Could just need a cleaning. I'd suggest you call a dealer who has been trained by Rinnai to pull a service call.

In your area

@ December 12, 2013 11:30 AM in New install: choose propane or oil?

There are a couple tens of thousand Rinnai Energysavers doing precisely what you are wanting to do. I'd suggest that you look into that option. I think you will find it to be very cost effective and provide the comfort your tenants are looking for.


@ December 1, 2013 8:22 PM in Rinnai tankless woes

The flow control valve. Just inside the filter location is a snap ring. Remove the snap ring and with needle nose you can VERY carefully pull the turbine assembly out. There are two sides forming the body and the impeller itself. Take pictures or at least carefully note the layout of the impeller and two body parts. It's amazing how I have tied myself in knots putting those back together. Re-install and try it. If it isn't that get on the tech line. Number is on side of the cabinet.

The purpose of

@ December 1, 2013 12:27 PM in Rinnai tankless woes

the inlet filter screen is to keep water borne debris from stopping the turbine wheel from spinning. The turbine is a precise measuring device. It is contained in the Cold water inlet valve immediately above the filter assembly Essentially it has an electronic pick-up on it that reads rpm and the units logic converts that to flow and combustion requirements to arrive at the set point temp.

The turbine "in" the cold water inlet valve

@ November 30, 2013 5:44 PM in Rinnai tankless woes

Is the likely culprit. If the turbine turns and the unit will not fire then the unit would code out 11, tried to fire and failed. Either the turbine is stuck or the flow control unit is bad.

Sounds to me like the

@ November 29, 2013 6:18 PM in Rinnai tankless woes

Turbine on the cold water inlet valve is stuck. Do you have debris in the inlet filter? If dirt gets into the turbine it is possible that the turbine wheel isn't turning. Everything tracks off that turbine

Oh, and the other cause may be cross connected H/C piping. It happens all the time.

"I called the manuf...

@ November 29, 2013 6:13 PM in Indoor Pool HVAC

And they don't recommend that application" the problem is they are simply not designed to operate and survive that chemical content in the air. I'd strongly suggest you heed their warnings. They won't last.


@ November 29, 2013 6:04 PM in Carbon Monoxide Issues - HELP!

I remember when Tjernlund designed the SSII power venter. One of the original goals was to take it to manuf and let them test it to be used without a barometric for their particular systems. That idea ran right into the time when all those manuf said they didn't need a supplemental venter. They could do it all with the burner. Sometimes it works well, sometimes not. I guess like everything else.

My suggestion to you is that you get a Buderus Rep in there with the technician. You are in MA and they have excellent representation there. Insist upon it. Make sure the guy coming out has his fast ball too and ask specifically for that "right guy" on this model boiler.

If you decide to build a chimney for this I would strongly vote for a factory built chimney. Do not use masonry. Masonry chimneys are 11th century technology venting 21st century appliances. Use as small a chimney as you can get approved by the manuf, and your local code official. I bet 5" would be just fine on this.

When you cleaned the fan

@ November 29, 2013 11:43 AM in Rinnai tankless woes

Be aware that at the outlet of the fan there is an "diffusion" chamber. It is possible that a dirty fan would also indicate that the diffuser plate above the fan is likewise dirty and could require a brush/vacuum.

All I can say, David

@ November 27, 2013 10:43 PM in I am so sorry for not answering my emails

Is that this gettin' old is everything it is cracked up to be. I hope things go well for you. Be well, be happy and you can now tease the heck out of your brother...although I understand how he felt.

This really is

@ November 27, 2013 12:11 PM in converting a two line system to a single line

A case of false economy. Trying to "hit & hope" that an oil burner will be properly balanced is close to assuming you have the magic formula to win powerball. You can make it run, maybe but Oil is costly. Get the most out of it and your equipment by having the unit set up properly by a pro. You will save money by doing so.

In addition to the wiring...

@ November 27, 2013 12:05 PM in Powervent shuts off after running for 1 minute

Has anyone serviced the SSI? If the blower wheel is packed and the sensing tube too, you can wire it properly and still get no heat. It is not uncommon for "some" service companies to tune up the boiler and never touch the power enter. They will then righteously tell you they don't service power venters. That was always a head scratcher for me. If the wheel hasn't been cleaned it is not uncommon for it to get out of round and require a new wheel. The UV1controller on that unit will have diagnostics on it and has adjustable pre/post purge built in.

Don't known where you are

@ November 27, 2013 11:51 AM in low ambient heat pump to supplement house heating

But this is a good system upgrade in my experience. As noted, make sure you fully understand the performance of the particular model number you are lookingo at installing. Seer and HSPF ratings will vary dramatically by model from each manuf.

Also, from a cost standpoint, in my home I was going to go with a triple unit. In looking more closely, I ended up doing a dual unit for the upstairs bedrooms and went with a single hi seer/HSPF unit downstairs. Equipment cost was about the same. System performance and zone control is much better.

Have done

@ November 13, 2013 11:04 AM in small heat loads

Many of these types of conversions with Rinnai Energysavers. Simple install, individual control, significant savings. They have plenty of case studies on these systems.
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