Joined on May 27, 2011
Last Post on August 28, 2014
@ August 14, 2014 6:09 AM in Is 100k BTU the right size of boiler (or HTP heater) for both baseboard heating and indirect DHWHas anybody done one yet to determine if your baseboard is sufficient at 70' using 160* fluid ? This would need to be a room by room heat loss .
How did you come to find out about Versa Hydro ? Swei is correct in all he has stated but the Versa (PHE130-55) would be a good fit for your project if in fact 160* is sufficient . The Versa is a water heater that uses the stored mass of water in the DHW tank for space heating . When there is a call for heat the Variable speed pump pulls water from the tank and through a flat plate heat exchanger , it will not short cycle when programmed correctly . Your installer should know how to do the proper math to accomplish this , that is the main concern . This unit quite simply enables a system to operate as if there were a mod / con boiler , indirect water heater and a buffer tank which is what most would specify , the only sticking point would be , do you have enough installed radiation for the 160* temp . Along with whatever equipment you use a Delta T circ will help you insure that you are matching the load at any given time .
Like Swei said , the low end is what you need to be concerned with , so does everyone now . Properly designed systems should be able to match the load at a given point in time without overshooting fuel usage . As far as equipment and space / labor saving go your mentioned choice is a sound one .
In the future if you decide to or need to replace that furnace you can just use an air handler with a hot water coil and that too can enjoy the outdoor reset feature by changing the water temps to the coil . remember a house doesn't change size , the load does
@ August 12, 2014 8:51 PM in Indirect heating systemHave a blower door test performed on the home . Have whomever does the test convert from ???cfm50 to ???cfm nat . This will give you your ACH at worst case . Just an idea .
@ August 11, 2014 11:06 AM in System's Architecthe stated capacities between 4 and 5,000 gallons with an R value around the tanks of R150 . What I believe will be missed in this set up as opposed to other Thermal Battery systems is a latent capability and the initial investment . This really does exploit how much better Solar PV panels should perform though . Seems that lately much stuff is rearing its head showing how our industry can enhance and outperform what everybody else has been peddling in this game that seems to be run by Duie ,Cheatem and Howe .
@ August 11, 2014 7:28 AM in Alpine 80 trouble-red screenDennis Foley to go over every bit of this system . After that contact an attorney and start litigation against the installing contractor and anyone else who stepped through your front door . Cannot believe you are still having issues with this brand new system even after freezing in your home this past winter and the certain case of carpal tunnel syndrome you must have suffered from the 500+ post thread about it .
@ August 10, 2014 11:33 PM in System's ArchitectPlease visit this group , https://www.linkedin.com/groups?home=&gid=4967184&trk=my_groups-tile-grp . If you have an aversion to LinkedIn contact James Schenck from Thermal Battery Systems Inc , Energy Dynamics in Bozeman Montana .
Here is a short list of others that could certainly help , Robert Bean , Mark Eatherton , Rod Hyatt , Unless of course you are Rod . This is a well thought out paper you have provided and some will ask who you are , let me be the first . Your ideas are sound , I just wish there was even less dependency on mechanical equipment , it is possible you know ?
@ August 10, 2014 2:03 PM in Homeowner replacing gas with electric, seek inputSwei & Zman have both touched on some really good points . You should listen , there's a reason you sought advice here . Incase you decide to go witout P&S piping get rid of the air eliminator , Y stariners , and the P&S stuff and just use a caleffi 5461 Discal (magnetic dirt and air eliminator . If you must use the P&S for whatever reason still do away with the unnecessary clutter and use the newer Sep4 from Caleffi also ( #5495) , this is all of the above and a hydraulic separator to boot . Also , use a 10* ^T for a slab floor application , you'll experience a more even feel from the panel .
@ August 7, 2014 5:50 AM in How many heat zones can I afford?I guess you could put a price on it but when you design for comfort efficiency follows . Yeah , the TRVs will be a bit more expensive but control over all areas even within a single room can't be beat . The Taco bumble bee is not an expensive item per say , recoup could be 1 - 2 years mathematically .
@ August 6, 2014 7:12 AM in Help...I bought a foreclosureSingle combi unit but not like a wall hung low mass piece of garbage . Check availability of this http://www.htproducts.com/versahydro.html . It won't disappoint you . PHE130-55 , also comes in 80 and 119 gallon storage . Don't know how much DHW you require
@ August 6, 2014 7:03 AM in How many heat zones can I afford?for your radiators would be the best option considering your concerns . Every room / rad would operate independently of the others , comfort would be optimal and should you decide to keep rooms at different temp ranges when you change the setting the response time is nice . Wireless zoning and efficient as hell . TRVs and bypass fittings are relatively inexpensive and require a bit of elbow grease maybe to retrofit but feel worth the investment in time and funds . You should be able to utilize an ECM circ also really lowering your electric usage .You get to keep that old house style and have modern efficiency ratings system wide . We cannot really throw out numbers here but check the following for price and availability .
Are you in Jersey or Pa ?
@ August 6, 2014 6:54 AM in choosing (1) Integrated Boiler Hydro-Air and baseboard, vs (2) Separate Furnace and BoilerI read the newer discussion you started and must say In my opinion what you are thinking of is gonna be 1 giant pain in the butt . Whoever performs this work will have to charge a large fee for all the repiping and controls to make it work . There is equipment available that offers mass , modulating / condensing technology , outdoor reset and that is versatile and won't short cycle w/o all kinds of extra components . You would save yourself much time and added expense by installing the new stuff now and gathering your data . The time , money and effort you are thinking of would just be throwing money away , but hey , if you can throw money away who am I to deter you .
Indirects , boilers and furnaces , OH MY ! Have a look at the provided links and watch the videos by the owner of this Mass Company and READ what theses units capabilities are . My suggestion would be to purchase and install these , not use ANY furnaces but instead just AHUs and be done with it .
Boiler component : http://www.htproducts.com/pioneer.html . This is a 55 gallon mass space heating appliance that will not short cycle and is very efficient .
Heat for the AHUs and DHW : http://www.htproducts.com/phoenixwaterheater.html . This water heater is modulating / condensing also and we have used it many times for DHW and AHUs combined without fail , it works great .
@ August 5, 2014 8:13 PM in Need help on a complete system overhaul!!What others are you entertaining ? What kind of boiler , hot water system ? If they are bad like getting rid of rads maybe we can show you why they may or may not be mistakes . You should definitely KEEP the RADS .Even if someone where you are is telling you they are no good he is misinformed . As a matter of fact if you are thinking of a high efficiency wall hung they may be your best bet by far .
@ August 5, 2014 5:44 PM in How would you....? (daycare mixing)are tender , not tough like us leathery old bastards yet . In discussions with many that write the ASSE standards that water above 106* causes pain in most people period . Yeah yeah Iknow but we are leathery old guys after all . Little kids and =
@ August 4, 2014 12:48 PM in choosing (1) Integrated Boiler Hydro-Air and baseboard, vs (2) Separate Furnace and BoilerTom, something is wrong with this heat loss . If you are doing the upgrades you mention I cannot imagine the load being anymore than 110,000 at design . I am in Jersey and design to 0* and take steps to make sure the equipment does not short cycle while ta the same time is able to provide my clients with ample heat on those record cold days . Mass is not much different than what I design to . This may be a matter of a block load calc like you have done as opposed to a room by room . The system you are describing will require some kind of thermal mass on the equipment side , this will allow your equipment to run optimally at ALL times . I doubt any of the folks you have had there as of now even considered such things . Before you make an unwise decision that seems wise let us help you for a bit .
@ August 4, 2014 12:41 PM in Buderus failure at HW outputLook at the SuperStor units . They are stainless and have a lifetime warranty . These units are as close to bulletproof as it gets .
@ August 4, 2014 11:43 AM in Navien CH240 drawing intake air from basement?the possibility that if the house is tight where will the unit gets it's makeup air from then after inside air is exhausted ? Not a good install in my opinion .
@ August 4, 2014 11:38 AM in TriangleTube Installyou have to determine the highest head loss zone , all segments must be added . That is the head loss you must overcome and as for GPM it would be the total required flow when all rads are calling
@ August 4, 2014 10:19 AM in TriangleTube Installwhat do you expect it to be ? P & S may be necessary but can be done in a better fashion for your particular application . Hydraulic separation for what you are doing would be more beneficial with a small buffer tank . Constant circulation on the emitter side and a small circ on the boiler side . This will provide the situation where your TT can really perform to it's capabilities while preventing short cycles .
Where in Maine are you located ?
@ August 4, 2014 7:00 AM in choosing (1) Integrated Boiler Hydro-Air and baseboard, vs (2) Separate Furnace and BoilerSince you have been reading for awhile you should know about the importance of heat loss calculations before designing / installing any system . Has any of the contractors performed one yet ? If not you should move onto the next guys in line or seek out one that will do this .
Now the next concern . Is the home insulated , what kind of windows are there ? Be very careful of who does the heat loss or you may still end up with an oversized unit . Tell whomever quotes this your priorities also such as hot water usage for your family and how you use the heat .
Pointer : If you hear anything remotely like " Well I have been doing this for so long I just know " , or South of the Mass Pike gets 25 BTU per ft and North gets 35 get rid of that guy also and move on or buy a house South of the Pike .
Where in Mass are you ?
The part of the system supplying the air handlers if in the attic should have a heat exchanger and at least a 30% glycol fluid to avoid freezing as Ice has stated .
@ August 3, 2014 1:48 PM in Emerson swanThey did in fact dump AO Smith recently . They also became the rep for HTP and HTP got rid of Gooding as their rep . Sounds like both companies did a lot of thinking about where the future will bring them .
@ July 28, 2014 6:43 AM in Help with poor installIf I am looking at this correctly there is 20 feet of radiation in the dining room which requires 11.5 . This on top of the fact that it is on the hottest part of the series loop may well be the problem . The thermostat may be satisfying before enough heat can be supplied to the other rooms . I would eliminate that 4 footer on the interior wall to start with and employ a Delta T circ for the first floor zone , this will have the zone run long enough to satisfy other rooms and keep the temps to all baseboards closer to an average . A good starting point for the money it will cost .
@ July 27, 2014 11:45 PM in Help with poor installwhere is it located Paul ? What are your plans for the basement ?