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Joined on May 27, 2011

Last Post on July 24, 2014

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Rob Brown

@ July 10, 2014 1:38 PM in New Radiant System

Design Manager at Rockport Mechanical in Lewiston Maine

Performing 2 tasks

@ July 10, 2014 12:40 PM in Getting into mod/con business

sounds daunting ?  It's kinda like walking and chewing gum , gets even easier when you're not expected to do both at once .

Question for BC

@ July 10, 2014 12:37 PM in Getting into mod/con business

Is your home hot water heated or steam heated at present  ?

Why yes

@ July 10, 2014 12:32 PM in Getting into mod/con business

they can and do recognize what is calling .  Most even power the circulator for the DHW as well as central heating circulator .  Sensor (10 -12k) usually sends signal to boiler , boiler adjusts SWT accordingly until demand is gone or programmed max time is reached than will return to space heating temp requirements based on ODR or some other programmed temp .  All this debate about mod/cons and you were not aware of these capabilities ? 


@ July 10, 2014 11:11 AM in Radiant cooling

Ultra Aire SD12

Where from ?

@ July 10, 2014 10:55 AM in Getting into mod/con business

Moving energy

@ July 10, 2014 9:14 AM in Hydronic underfloor used to effectively enlarge direct solar thermal mass?

Felix ,
  Good to see you took my advice . There are many very informed open minded folks here whom will be more than happy to attempt to help . In another thread titled peer review please is an industry leader who has several ideas to do what you are planning or inquiring about only difference being the energy he seeks to collect and move for other purposes is outside , but moving energy from one place to another is just that whether it is outside or in .
  Passive houses can be funny and there may be other ideas or areas that could be utilized more efficiently than a floor in these homes . When we think about the assembly we must realize that the solar energy will only contact certain parts of the floor , those beginning however many feet into the room that the angle of the sun and the window size and height determine for us  .  I always thought a much better place for this solar gain component would be a wall which had similar mass . That assembly in my mind would solve the problem of the south facing rooms overheating , once heated would transfer the energy to the north also benefitting the whole home as opposed to just one side .
  Some of the experimentation and information on this type of strategy is more than a decade old and the time to re examine them is beginning . With the mainstreaming of ECM circulators , off the shelf controls and a better understanding of things it should certainly be feasible at this time or at least developable . There are too many opportunities missed in the name of the dollar in my humble opinion . Joe Lstiburek said it best in his paper " It's about the energy Stupid" . We are either going to make gains by doing it for real or stop thinking you're gonna save the planet by doing things halfway because that's what someone determined for you . Every individual has to decide what his budget will allow and make a conscious decision about how far he will go and not let someone whom is a self proclaimed or recognized expert tell him what is right or wrong . Believe me , there are plenty of recognized experts out there , most of which became that way because they were around in the beginning and nobody knew anything then . Those are the very same people whom the manufacturers lobbied to push their kind of technology . They have become complacent and comfortable and do all they can to remain that way . I have no loyalty to any manufacturer , group or entity and like others here will speak and think about whatever deserves exploration as long as it is beneficial to the end goal which so many have lost sight of .
  Have a good look around and open your mind further . We wet heads have much to offer but are mainly not utilized by a large segment because they have dealt with monetarily successful folks who may or may not have been worthy of their success . Welcome to the discussion .


@ July 10, 2014 6:47 AM in New Radiant System

is no longer at NRT RobG . A simple search could probably locate him though .

Denigrating Path

@ July 10, 2014 6:06 AM in Getting into mod/con business

Not particularly BC , I simply decided to refrain from being sucked into the vortex of a debate about unrelated nonsense on a thread someone asked a specific question .
As far as my return with an affordable solution I offer the following . I learned a long time ago that every job is different and requires a different approach and different equipment specific to that job . With the knowledge we now possess many of us know that depending on circumstances beyond our control both types of technology may gain benefit from mass due to zoning , changing heat load requirements , etc . There are also many of us whom regularly add components to systems that in our opinion are required and this is probably a good thing as we are professionals .  On many jobs that are retrofit where extensive work can not be done at that time because of many reasons but will or will not be in the future I sometimes turn to this product because it has built in air elimination , dirt separator , mass , modulating burner , condensing technology , superior materials and requires about the same maintenance as a cast iron boiler . When I do the math and include all the components and labor involved with them which I would include anyway this unit actually usually costs less to the consumer .

Have a nice day and no you don't get the shirt . I will send you one though just for making me laugh . Send me your info in a PM so I can ship it .


@ July 9, 2014 9:37 PM in Getting into mod/con business

Did you mean GC124/3 BC ?  Just for accuracy .

Deleted Threads

@ July 9, 2014 9:31 PM in Getting into mod/con business

Can anyone name what they have in common ?  Whoever comes up with the correct answer first will receive a beautiful blue Langans Plumbing and Heating shirt . This hirt is made of 100% cotton and sports the motto " Considerate People , Considerate Service , Consider it Done " . Unlike some folks we spared no expense in this purchase for the comfort of our men .  I will determine the winner by the time stamps of the answers and contact the winner for their preferred method of delivery . Thanks for participating . Contest ends at 7:00 A.M July 10 2014

Math and Equipment

@ July 9, 2014 8:06 AM in Getting into mod/con business

are funny things . There is no choice with math , it is what it is . You can choose equipment and method of install .  BC , how bout this calculation for the sake of argument .  !00K mod con and 100K cast iron boiler . Price difference 500.00 . If I can make the mod con not short cycle , give it mass and modulate it , would there then be a CLEAR and CONCISE winner ?  You guys all chew on that for the day and I'll be back tonight .


@ July 8, 2014 8:45 PM in New Radiant System

TRVs with Bypasses and constant circulation . 

Utica Wall Hung

@ July 8, 2014 8:40 PM in Utica boiler

or SSC as it is marketed is a fine product George . It is in fact manufactured by ECR International and is the exact same boiler as The Dunkirk Helix . Just a bad install , not the boilers fault . I would install one any day if that is what fit the bill for a particular job .


@ July 4, 2014 5:37 PM in Cleaning radiant tubing

You have flushed the individual loops a couple times to clear the fluid use just what Swei has linked to . Too expensive to just be pissing away though , take the time to use straight water first .


@ July 4, 2014 4:12 PM in Cleaning radiant tubing

flush and fill cart . You cannot beat this thing for cleaning terrible tubing . Easy to use and you collect the garbage in the lines which insures the customer they got cleaned up nice .  Really good investment for anyone performing hydronic operations / installs .  Get yourself one .


@ July 4, 2014 4:06 PM in Low Profile Rescom 2100 Aluminum Baseboard Radiators

Very similar product made by Hydronic Alternatives in Springfiels Mass .  Been around for quite awhile too . Sorry about your shipping nightmare , maybe they just escaped your search .

Taco training

@ July 4, 2014 10:55 AM in Getting into mod/con business

is the best you will receive without them pushing their product , yes they will tell you how their product can help in certain situations but  I assure you that it is APPLICATION based in whole . It si very reasonably priced and they will make hotel accomodations for you and ground transportation is provided . I hate manufacturer training for probably the same reasons as you and this is where you want to go . Try their site also at the Flopro neighborhood and go to Taco University , you will gain real insight to fluid based systems application without a manufacturer telling you why their product is the best . Have no idea what your current knowledge is but even for guys that know a bit you will gain much knowledge . 

Gastite manual

@ July 3, 2014 8:47 PM in Bouncing Gas Pressure

Pages 39-43 .  I believe they have a program online to size in this manner Swei .  When this stuff first came out long ago I began to wonder how it was that you could run smaller diameter pipe when that type of pipe had a higher pressure drop per foot .  The answer was right in the International Fuel gas code .  3 acceptable methods for sizing , #3 other approved engineering methods .  This is CSA approved and is shown plainly in the manual .  The charts will plain and simple rob the money right out of your bank account with the price of metal now . Charge same price and offer some piece of mind .  This method pretty much relies on 402.5 Allowable pressure drop . Written right in the code for those whose money and perhaps meeting the intent and spirit of the code mean something . You should check it out , it is really economical and will leave you with more of your profit .


@ July 3, 2014 7:03 AM in Bouncing Gas Pressure

We have been sizing using series summation (allowable pressure drop) for years now without a hitch .  We have also been called in several times where people installed tankless 199,000 water heaters and found that the meter was sized tight when there was a typical storage water heater (40,000) but when the tankless was installed the pressure drop through the meter would increase from 1/2" to 2" leaving the equipment woefully short of required minimum inlet pressure . 
The series summation method is segmented , main to tee , tee to appliance and makes for easy math while sizing and determining what size pipe is needed and it's maximum length .  Over the years we have saved loads of material and labor money and been able to locate and point to any possible problem or condition easily .  It works on all pipe where pressure drop is known for a given load for that pipe , a good example of the method is shown in Gastite manual , there are iron pipe pressure drop tables in rear of manual . Just size the system as they would have you do it using their product , ignore the wording CSST and substitute with iron pipe .  Using this method is accurate , labor saving , economical and will minimize the hazards associated with the distribution and storage of --------- within the structure , in other words , the INTENT of the CODE .  It is an approved engineering method and will save you time and money .  Just remember to ream, every piece of pipe , you probably already do that but many don't .  Tim or Ray may be able to verify the validity of this method , I am sure .

New board

@ July 2, 2014 11:19 PM in Munchkin 199MLP R1 not heating

Those Munchkins with the 925s are serial number specific . Not sure but don't believe what you are thinking is worth the effort . You can probably have a board and be enjoying hot water before all the research

Can you

@ July 2, 2014 8:33 PM in Need to replace big old galvanized pipe with pex

scan both of these drawings and then attach the pictures in PDF . They are small and cannot be viewed well when I increase the size
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