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Joined on December 29, 2008

Last Post on August 23, 2014

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I saw this post earlier

@ August 14, 2009 7:46 PM in peerless ec-06

today and tried to contact Peerless but nobody in tech picked up after about 20 minutes waiting I hung up.
My concern was not that it couldn't be done because it can. My concern was that you have a 3 year old boiler that carries a warranty on the iron. After reading the warranty on the boiler, I believe you are voiding the warranty on the iron leaving the homeowner on his own or exposing yourself to his wrath. You are modifying the boiler with a burner that has not been tested by the Peerless Factory who have no specs for the set-up of a gas burner for this boiler. I've run across this with other boiler mfgs and that was there stance so I would believe Peerless would fall in line.
Nobody generally worries about this because most conversions I see are done on older boilers not newer boilers. I would contact Peerless to make sure this is not the case before I started converting the boiler.

Few Questions

@ August 14, 2009 7:30 PM in Radiant snowmelt under wood deck

I've never attempted this application. Do have some questions though.
1. What is the r-value of trex decking?
2. If attaching plates (which I'm assuming you are going to use). Would you void the deck manufacturers warranty on the deck?
3. I'm asuming you are going to insulated and close off the underneath of the deck. What happens to the run off of water from the rain, washing the deck and the snowmelt after you close off the ability of water to run off in between the decking itself? Is the deck pitched for run off water?
4. How is this being controlled? Generally on a snow/ice melt application we are running the system whenever its 32 degrees or below, would you still do this? What would be the response time of the decking? You have less of a mass in this application then with tradiational snow/ice melt, would you need a longer run time in order to melt.
5. Interested in the results. Keep us posted and best of luck

PDF Files

@ August 14, 2009 2:05 PM in Primary Secondary piping

cannot be uploaded. Only pic files. Been down that road too. Dan offered to put these in the library under the resource section, I e-mailed him the Taco Wiring Guide and he put that on there. May do the same for you. Just ask.

Not Specifically

@ August 13, 2009 8:13 PM in A friend has radiant heat with outdoor reset.

Haven't seen too many applications or heard of to give you an anwser. In my experience I try using set point type controls (Wirsbo 511) in every job I am involved in. If your not familiar with the control is has a floor sensor but it also has a air/indoor sensor.  I use it 100 percent of the time for kitchens and rooms with solar gain. It is a version of indoor reset but not 100 percent indoor reset.
When operating the air and slab or floor sensors concurrently, the controller calculates an on time for the Heat 1 relay to satisfy the slab or floor sensor’s requirements and on times for the Heat 1 and Heat 2 relays to satisfy the air sensor’s requirements. The controller operates the Heat 1 relay for the longer of these two on times. While the minimum slab or floor temperature is satisfied, the on times of the Heat 1 and Heat 2 relays are calculated to satisfy the air temperature requirements.

During heavy loads, the maximum slab or floor temperature setting limits the on time of the Heat 1 relay. In this situation, the Heat 2 relay may be on while the Heat 1 relay is off.

Have you seen this job? What is radiant application? What is your friend using to compare his heating bill? Is this something that has always been or something that has changed over the years? 
I can e-mail you the PDF File if you desire.
Best Regards,

I tried. Thanks for the heads up.

@ August 13, 2009 7:14 PM in Testing out a link

Not being able to post PDF's is a pain but understandable.
Was trying to figure ou a way to get someone the entire manual and to make it easy as possible without having to download the whole manual. I can't do it in one shot...Have to download by chapter. Thought is would be good for the library. But I would have to send to you chapter by chapter to get it in the library.

Link to Wirsbo Design Assistance Manual

@ August 13, 2009 6:58 PM in Testing out a link

Took me long enough to figure this out. I'm hoping it works when I post

But it didn't work..So I removed it.....Sorry

Testing out a link

@ August 13, 2009 6:11 PM in Testing out a link

Thanks for adding the Taco Wiring Guide to the Library Dan. Just testing the link

Vitodens Multiple Boiler Application

@ August 13, 2009 9:19 AM in Vitocell Question

I'm assuming you are using the old WB1A series and these boilers are being staged.
 You would need the following:
1 - Versatronik 200 #7416 059 - Controls up to 8 boilers
4 - CoCo OT Adaptor #7416 060
1 - Mixing Valve Adapter #7416 061
1 - Mixing Valve Acutator #7133 390
1 - Approriately sized Viessmann Mixing Vlv
or you could scrap the whole 100 idea and use the new  VItodens 200 WB2B105 which is 370,000 btu. Already has the control you need in it and way less expensive.  I'm of course assuming your load is 400k based on using 4 100 boilers. Check it out..

Question of the Day

@ August 13, 2009 8:19 AM in Question of the Day

This doesn't come from me....This is a convernsation that I overheard at the counter this morning between a contractor and my counter guy. Of course I had to share.

A residential homes heat loss is different if you heat with forced hot air vs baseboard?
You know my anwser....No!....But there's.....Yes.....Care to comment so I can share this anwser with my counter guy and contractor...They are adminant that is is. I tried to tell them you can't change a homes heat loss it is what it is.
When I chirpped in they were saying that you need a 100,000 btu furnance (not boiler) to heat a 2,000 sqft house. I stated that the average heat loss of a home that sq footage is between 40,000 and 50,000 btus and a furnace that big is oversized. I even offered to do a heat loss to show them....They both said I was nuts....Contractor stated it would never heat the house at -10 below. I then said ok..So I;ll design for a -10 day and I bet the loss is still only 70,00 max. They both still looked at me like I was nuts...Why?  Because of the question above...


@ August 13, 2009 6:54 AM in Vitocell Question

Are you using their boiler or another manufactures? If their boiler  which model.

Is he the same

@ August 13, 2009 6:36 AM in Indirect hw tank separate circ?

old guy that doesn't t use a zone control with priority? You should be fine with the zone valve providing your boiler circ (system circ)  is sized properly.

It's a water heater

@ August 13, 2009 6:25 AM in Condensing Boiler versus Navien

Wasn't to familar with the tankless heater you spoke about so I went to the web site to check it out. My first thought is that it is not listed as a boiler its a water heater. I would be curious to what grade of stainless the heat exchanger is made of.
I couldn't open the installation manual on their web site but I would be curious as to see the piping arrangement for a domestic/heating system.

In understand

@ August 13, 2009 6:13 AM in Best strategy for combined heating / cooling thermostat

My only thought is that if we are trying to share an installation manual, spec sheet, wirirng diagram, etc everyone on the thread would have to e-mail you to get it. in order to see your thought as stated in your post. Like above of example...Maybe another contractor after reading the spec sheets may find it helpful to them or maybe he has an opinion on it.  Just my 2 cents.

With the new Site

@ August 12, 2009 9:16 PM in Best strategy for combined heating / cooling thermostat

I am unable to post PDF attachements so I cant send you specs to check out. Uponor (Wirsbo) make a heat/cool state that should work just fine. They also make a zone control that you can use. You do have to add a seperate transformer though. I pretty sure you should be able to use a taco ZVC zone control also.

Dan Can we not post PDF files?

@ August 12, 2009 8:10 PM in Welcome!

Tried loading a PDF as an attachmen. Kicked me out saying had to be a .gif, .jpeg


@ August 12, 2009 8:04 PM in Best strategy for combined heating / cooling thermostat

You can use these with a Taco Zone Control. How many acuators are we talking about?

Do You Know

@ August 12, 2009 7:40 PM in About makup water supply.

what article or where John's thought on this are. I'd like to give it a read.

Thanks for adding the category Dan.

@ August 12, 2009 7:22 PM in Thanks for adding the category Dan.

I now have the greatest site and resource to send not only my contractors but homeowners that are looking for information and have questions on radiant heat. 


@ August 12, 2009 7:14 PM in Welcome!

Now your showing off :). Thanks for the add. I do have question. On the old site when someone repsonded to the thread we posted on you recevied an e-mail keeping you up on the thread without having to log on the site. Do we not have that option anymore if we would like.

Dan...With Radiant

@ August 12, 2009 6:45 PM in Welcome!

and high efficiency becoming much more popular with contractors and the homeowner would it be possible to get a category for it so those posts wouldn't get buried in the basic heating category.  Would make it alot easier for us that specialize in that to converse, Just a thought..Site is great.
Best Regards,

My 2 cents

@ August 12, 2009 6:30 PM in About makup water supply.

Is to leave the feed vlv on. I'm not familiar with John's article or quote so I don't know what context it what said in. I do know that in the 20 plus yrs I've been in the biz  I have never known or seen one shut off.
Could you tell me what article or book that John wrote that stated this. I'd love to read it.

Best Regards,

Took me a while

@ August 12, 2009 3:48 PM in Welcome!

to climb over that old wall but I made it. Thanks for the help getting logged in Dan. New site looks great. You deserve a big A+