Joined on May 27, 2011
Last Post on December 10, 2013
@ July 21, 2013 11:32 PM in Against the Plywood?is the way . Use verticals back to back for your headers and and horizontals at different measurements off of board and matching your 2 verticals . This will allow you to offset supplies and returns , keep it neat and use less fittings . If possible use 1/2 rod or bolts to do the attaching as 3/8" is a bit unstable and less rigid . Should be an example of this method as my profile pic . And here's a picture of another . The space inside the Strut also makes for a real nice wire raceway . Good luck
@ July 21, 2013 10:33 AM in I know now why I quite coming to the walldid not quit visiting the Wall cause here you are . There are many more educated guys than the opposite , you just have to exercise some self control and common sense and use the tools offered and ignore the nonsense . Or not .
@ July 21, 2013 10:24 AM in Tracing radiant loops?is why you cannot put rooms that don't have similar BTUsq ft requirements , similar finish floor R values and similar use patterns on the same zone . Gotta meet those criteria . The Uponor EP with actuators and zone control module is certainly the way to go after determining which loops go where . Also change that circ to a Taco Bumble Bee to insure proper delivery and Delta T . Totally worth the extra 170.00 .
@ July 17, 2013 6:18 PM in Oil to Gas conversion optionsThis home is so much different than yours , you would not believe and many diffrenet dynamics than yours . Yours has R Value that retains heat , his has stone walls that have very little R value , hot and cold are always battling within them . That 450 sq ft you speak of is probably more like 1,500 . The heat load shows this perfectly , there are so mant factors entered in a heat loss calc it would make your head spin . Luckily , on this site there are some very smart individuals who have the vast experience of servicing , fixing , scratching their heads asking "What was this guy thinking ?" .
Do you yourself know how to size a primary / secondary piping arrangement and that the higher temp zones should be first on the loop extracting heat from it and how many gallons you need to extract from the primary loop to keep the secondary at temp ? I can tell you this , with the mix of differing emitters and probable Delta T's and head loss that Navien does not make a boiler that would do this home , especially on a COLD day . I recently sat with 7 Navien guys from California and NJ ( Cherry Hill to be exact) at a 2 day class in Rhode Island . You should have seen the looks of amazement from these guys when they found out how this end of the business actually works and how some products just aren't capable of everything
Have you ever had to change out the 3 way mixing valve in a brand new CH ? It's no fun I tell ya ! Have you ever had to talk to a guy in California that only knows what's in his manual supplied by his employer that really has no idea what you are talking about , pretty frustrating . Not saying that all tech support guys are stupid but a vast majority are . I live and ply my trade in NJ also and I have to tell you it'd tough to sell a new work job because there are so many guys installing and recommending that have no idea . Good thing is that they give me plenty of work following them up and repairing or explaining to unsuspecting homeowners why their stuff isn't working properly .
To the Original Poster . Swei is right and has given you very good advice . Don't let contractor 1 back in your house . Contact a couple more contractors and make an informed decision and listen to professionals not other consumers .
@ July 17, 2013 5:23 PM in Radiant vs Forced Aircan certainly make for Horrible Indoor Environmental Quality . LMAO
@ July 17, 2013 5:18 PM in Replacement boiler sizingcertainly contact a reputable local contractor to perform a heat loss calculation for the house in it's present state before committing to any sizing .
@ July 17, 2013 5:14 PM in Zonebathroom it's own zone with a dedicated thermostat or an individual loop off of a manifold ?
@ July 13, 2013 1:58 PM in ? about heat loss calc?numbers do not relate to a heat loss calc , they ARE a heat loss calc. I don't understand the question maybe
@ July 13, 2013 1:24 PM in Radiant vs Forced Airis right . Not anywhere near that price from my wholesaler . It is a shame when parties make good technology unaffordable . You gotta shop nowadays just to keep em honest . One supplier here attempting to collect 359.00 for a 008 VDT while I can get it down the street for 167.00 . What business school did these guys go to . I know you know whats available but yet you brought up the UGLY Evaps .
@ July 12, 2013 5:56 PM in Radiant vs Forced Airthis is the 21st century . Gaudy evaporators are not the only thing anymore . Fujitsu makes a nice unit that can mount horizontally or vertically in a wall or ceiling that simply looks like a forced air register . And for the OP , Those estimates for replacement are certainly No good . Call others in the area . Equipment and piping would cost around the higher number . Good luck
@ July 9, 2013 9:00 PM in Radiant Ceilings?will have an R value between .3 & .6 per 1/2" , add .3 for 3/8" lathe and you will be under R1 . It may very well work . I would certainly make sure that the joist Trak plates are in full contact with the ceiling though . Insulate , insulate , insulate above the assembly . Should work fine with an R 30 above , only really have to use R11 for the below framing install , I always use higher value . You may have to increase SWTs a bit but when you're starting out with temps just above 100* you can do it without much compromise to system or boiler efficiency (mod con) .
@ July 9, 2013 2:06 PM in Radiant Ceilings?is certainly an option . The R value of your drywall is .5 for 5/8" rock . I would make sure that whomever insulates the attic joist spaces does not leave any gaps and does a real nice job . Radiant ceilings actually work very well . You could even utilize the same tubes for chilled water and handle your sensible load in the warmer months for A/C , but that's a whole other discussion . No chance of the Mrs of the house screwing up your heat emitters , cant put area rugs and furniture on the ceiling last time I checked .
We usually attach the joist trak perpendicular to the bottom of the ceiling framing and pack out parallel with 1" and attach the rock to that
@ July 8, 2013 8:53 PM in Joist Trak or Radiators?with TRVs would be my choice if faced with your concerns . Quality system , plenty zones , great comfort . No downside unless your homeowner really wants radiant floor
@ July 8, 2013 8:46 PM in Barrier X-5 underslab insulationis a very good product for beneath slab insulation . the R value is there and vapor barrier to boot . Easier to install than XPS boards , it won't break . All around the best value for my money anyway . Have used it for many years now and would not consider anything else . Best way to explain Barrier X5 is this , think about an 1 1/4 thick Dunkin Donuts coffee cup , still warm 30 minutes later when it's 35 outside .
@ July 6, 2013 6:54 PM in mixing strategyyou could choose the 120* temp , let the boiler handle reset , use no mixing and zone each installation method separately . Your slab will be a bit more responsive and when the surface temp reaches target the Stat will shut down that zone . No Flow , No hotter .
@ July 6, 2013 8:05 AM in Professional?Self certification which depends on the cashier doing their job and not allowing you to purchase without having the book at register . Really good practice huh ?
I use black pipe as a rule but occasionally run across the situation where CSST is pretty much a must use . in those instances I require proper bonding be performed by the electrician . I have never understood the hubbub about CSST causing problems during lightning strikes anyway . The IFGC has always had a provision for above ground gas piping . Sections 309 - 310 .
@ July 5, 2013 8:03 PM in mixing strategyI agree with Swei concerning the mixing valve he recommends . I use it myself quite often in an attempt to keep it simple yet effective and the I Series w/ODR has not disappointed yet . Let the boiler reset handle the higher temp and the valve do the lower .
I am curious about how the flow rates were figured out . Seems to me that at 63,000 BTUh you should be pushing 12.6 GPM and the 45,000 should be flowing at 9 GPM . Was a heat loss done on the home also ?
@ July 4, 2013 9:19 PM in Lochinvar WHN vs Crest vs othersuse what you're comfortable with . Stay away from the NTI however . Bad experience with them after using 6 on same job (6 units) . Problem after problem . Lochinvar and TT are both very good units as you are aware . Don't start to experiment now .
@ July 4, 2013 12:15 PM in Sizing boileris heat loss . Whatever the building loses must be replaced no matter what technology or method is replacing it . Some ways just do it much better . Since you have been instructed to use a GB and a heat loss has been given to you whether accurate or not the only boiler for you is the GB142/45 . It is right where you want to be but the next smaller option will probably fall far short .
@ June 30, 2013 3:18 PM in Taco X-Pump block, larger HX availibilityside pump is a 006 if I am not mistaken . I know for sure that the typical RMB is of this configuration . taking that into consideration if you are the slightest bit over 4' Hd it is operating at the top of it's curve