Joined on November 26, 2011
Last Post on April 23, 2014
@ March 26, 2014 11:39 AM in Tub strainer removalhttp://plumbest.com/images/00862-01%20Extract_a_Drain%20J40018.pdf
But before you resort to that, try heating with a torch before you turn.
@ March 25, 2014 10:57 PM in Natural Gas to LP gas conversion .. orificesRichard is telling you things you (or your attorney) need to understand before you release the installer of any liability.
@ March 25, 2014 1:04 PM in Radiant Wall - Ceiling -Floor AssistanceWe had a bit of a tussle a couple years back with an inspector over those. Finally got a letter out of Watts Radiant stating that the transfer plates had to be in contact with the sheet goods in order for the system to work properly and he relented.
Eight foot plates are less work than four footers for horizontal tubing runs. Radiant Engineering up in Bozeman sells them in both light and heavy gauge and can help with the math as well. Give them a ring.
@ March 25, 2014 12:44 PM in Advice on Oil Boiler ReplacementHave long cycles (year over year) and short cycles (seasonal.) If you can buy and store enough for the winter season during the spring and summer months when prices are lower, you will pocket some nice savings.
A mod/con boiler running on LPG can easily be converted to NG for a fraction of the cost of the burner replacement required when changing from oil to gas. It will probably consume 20% less fuel than a conventional boiler with a single stage gas gun. I'd be looking that way if I had more than one LPG vendor to choose from and the space for a decent sized tank (which you want to own, in order to have a choice of vendors from whom to purchase.)
How much of that 525 feet is on your property? If more than half, I'd want to investigate the possibility of meeting the utility somewhere nearer their existing line.
@ March 25, 2014 12:32 AM in i got to get rid of this steam heat system, i got questionsshould last at least one lifetime as long as the surface prep is good. Maintenance will involve a damp cloth every so often to remove dust.
@ March 24, 2014 1:34 PM in Best way to increase output from 8-fin cast iron steam radiator converted to hot waterBuy a few clip-on pipe thermometers. Install them next to each other on the same pipe to verify that they read consistently. If not, take note of which is off by how much so you can make reasonable measurements with them. Now move them so you can see the water temps at the inlets and outlets of both radiators.
Re-piping the two radiators in parallel rather than series will help a lot. How much will be determined by the measurements above and the size of the pipes feeding them.
@ March 24, 2014 11:10 AM in main line water filterand I continue to recommend them as long as the owners are willing to perform regular cartridge changes or pay us to do so. There is far more rust and sand in most municipal water systems that most people realize. HOWEVER -- if the owners are too cheap and/or lazy to change cartridges, it is a very bad idea. Filter media grow very nice bacterial and fungal cultures over time. Clear housings help a lot -- out of sight, out of mind.
@ March 23, 2014 8:24 PM in My first ALPHA pumpif you have zone valves, it usually works quite well. Adjust the pressure with both zones calling until the ∆T looks good.
@ March 23, 2014 8:19 PM in Advice on Oil Boiler Replacementtolerates lower return water temps than most boilers. Combining that with outdoor reset should increase both comfort and seasonal efficiency.
@ March 23, 2014 4:56 PM in Want to move from oil to gas boiler. Best way forward?yet still better than no science. Sounds like your old boiler was indeed massively oversized, but that hardly makes oversizing the new one a good idea. The old boiler was a high mass design, both in iron and in water. The new boiler is a low mass design, with very little water content.
The second sentence in your initial post demonstrated an apparent lack of understanding of the proper selection and application of heating appliances. I made an effort to remedy that by providing you with correct information. You have chosen not to discuss the merits of your proposed plan, but instead to question my intentions and my integrity.
I do not perform energy audits, though I do employ many of the same tools and techniques which energy auditors use. I am located more than 2,000 miles away from PA and do not perform work there. I have nothing to gain or lose from this other than my time. Good luck with your project. Please consider employing the services of a qualified designer or installer before you decide where and how to spend your money.
@ March 23, 2014 2:14 PM in New boiler supply/return questionwire up the outdoor temperature sensor and configure ODR on the boiler?
@ March 21, 2014 6:26 PM in Buy used electric boilerwould be determined by a heat loss calculation on the house.
Integration with a wood boiler is not all that difficult. Properly installing and controlling the wood boiler is far more complex. Have you read http://www.caleffi.com/sites/default/files/coll_attach_file/idronics_10.pdf by chance?
How many hours do you expect this backup boiler to operate during a season? You might want to spend a bit of time with http://www.eia.gov/neic/experts/heatcalc.xls before you get too far down the road on this plan.
@ March 21, 2014 2:25 PM in Warmboard on slab versus PEX in slabcosts as much or more than pouring a typical 4" slab does. Adding it to a new slab really makes no sense. The required water temps for an insulated slab are quite low, and with proper design, they can easily be made to match those of the Warmboard floor above.
Both will work well with geothermal, solar or other low temperature heat sources.
@ March 21, 2014 1:46 PM in Munchkin replacementFire-tube heat exchangers are generally more tolerant of calcium and magnesium than the older high restriction designs like the one in your Munchkin. If the system uses any appreciable quantity of makeup water, these will accumulate over time which can really make things bad. How hard is your water?
Softening exchanges calcium and magnesium ions for sodium (or potassium) ions in the water. It also increases the chloride content of the water as a side effect. Many stainless alloys will not tolerate high chloride levels.
Where water quality is less than perfect, I typically recommend chemical treatments which can prevent most of the problems from affecting the various metals in the system. Where water quality is truly bad, we fill partially (or sometimes completely) with RO water and then add treatment to prevent corrosion or leaching.
@ March 21, 2014 12:13 AM in Buy used electric boilerthey do not cost all that much. I'd check that out before I even bothered to evaluate the condition on a used one.
@ March 21, 2014 12:11 AM in Weil-McLain & Caleffi Installationlooks like a nice installation.
@ March 20, 2014 11:49 PM in Gas pipingbut based on conversations with engineers at tankless manufacturers, I suspect this may be a case of marketing spin applied to what I believe to be a very reasonable engineering decision: In the event that gas pressure drops, reduce the firing rate until gas pressure stabilizes (as opposed to throwing an error and shutting down altogether.)
Current codes do not take this behavior into account.
@ March 20, 2014 11:43 PM in Want to move from oil to gas boiler. Best way forward?"Heat loss calculations" should never be put aside. I would be quite surprised if your design day heat loss comes in higher than 40,000 BTU per hour. Installing a boiler with more the three times the required capacity is highly unlikely to produce a happy ending.
@ March 19, 2014 12:33 PM in Ornate Cast Iron Radiatorshttp://www.oventrop-us.com/pdf/submittal/1-SteamRadConversion-S-091510.pdf
@ March 19, 2014 11:33 AM in Please critique this designI'd double-check that one if I were you. I'm pretty sure someone at Lochinvar gave me different info about a year ago, but I don't have notes on the conversation.
@ March 19, 2014 11:08 AM in Piping a Wallhung Modcom for concrete radiant.Are the snowmelt loops on a separate manifold? If so, I would consider separating them from the space heating system and (after checking the glycol pH as Carl suggested) leaving them isolated. Then refill the house system with straight water plus an inhibitor. If not now, then perhaps when the glycol does need changing.