Buderus or Weil-McLainin Gas Boiler - Which to Buy?
johnxyz
16 years ago
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johnxyz
16 years agoRelated Discussions
Weil-McClain Ultra vs Buderus GB142
Comments (0)I'm about to replace an ancient Wiel-McClain oil burner with two new high-efficiency gas boilers. I have a two-family house with big hot water cast iron radiators, and am splitting the heating system into two parts. It's a big job, but I'm committed to it. Now, which boiler to choose? My plumber has recommended Weil-McClain Ultras; one will have an indirect water heater attached to it. I've been encouraged by a friend to consider the Buderus GB142. I know this set-up would cost me more up-front. However would the increased efficiency of the Buderus make up for this initial expense in the long run? I've read about problems with water pH and the W-M's aluminum core. Is this a major concern? I think that's enough questions for now. Thanks in advance to anyone who might shed some light on these questions....See MoreBuderus vs Munchkin vs Phoenix for radiant + hot water
Comments (19)I'm not familiar with either report and will read when I get a chance. But without reading, I will first agree, and that I eluded to in another post, the published ratings arenÂt always achieved depending on the application. If you install a condensing boiler in a radiant panel application, or large mass radiation or convection that will allow lower temps, have considerable operation times and it is installed optimally, you will see the efficiencies published or higher with the lower water and operating temps. If you raise the temps to 170-190 as so many copper convection baseboard systems were designed around, absolutely not will the efficiencies be achieved, but as good as or better than the rest. The bigger value here is the significant less standby loss associated with a larger cast iron boiler that was fired, is now full of hot water and sitting idle, with ambient and stack losses occurring. The most important thing to gain by installing the mod/con boiler in any application and to obtain near or at published efficiencies is too run it at a temp to satisfy the space requirements and no warmer. This is done with an outdoor reset. The handicap that most cast iron boilers have is the minimum advised run temps, in order to avoid, condensing, shock and low flue temps resulting in draft and chimney problems....See MoreReplacing a 25-year old Weil Mclain
Comments (5)The best thing, in my opinion, is to first do a proper heat loss calculation on the house with the new addition. Taco's free FloPro Designer software, along with many other software programs, and even the old Manual-J method will get you your heat loss calculation, and then you can go from there. The old "rule of thumb" methods for calculating boiler size are no longer the way to go. After tightening up the building envelope, installed new windows, caulking gaps, etc. your old boiler might even be oversized... Your boiler is very efficient, and if it shows no signs of failure, and you have it properly maintained, I wouldn't worry about it. I have a Weil-McLain Gold Oil Steam boiler (from 1995) which was converted to hot water when I converted my 3-family from one steam system to three hot water systems. While it is WAY oversized for my 1st floor apartment, I just couldn't part with it. PexSupply.com is a great place to research boilers and find prices and specs. If you decide to have a plumber install the system, insist that they perform a heat loss calculation before selecting a boiler for you. They will usually have a "favorite" brand that they like to install, which might not be the one your looking at. Good Luck, Nick...See MoreBuderus Logamatic Control worth $1200?
Comments (5)I live in Northeast PA. I have a Buderus oil fired boiler. My home was built 3 years ago and is 3000 sq ft ranch. My old house was 1900 sq ft ranch and I had a Weil Mclean boiler that also used oil. Both are a hydronic hot water systems that use the hot water to make hot air. I used about 1200 gallons of oil in my old house and about 1400 gallons in this house. Considering both house were insulated similar I believe the big difference is the Buderus boiler with the logamatic control. The temp control outside regulates the water temp in the boiler. Another saving is maintaining temp in the spring, summer and fall when I really only need it for hot water production. I think with the cost of fuel this is a big payback. A word of caution. Make sure your installer knows how to program it. We did have some issues and a call to Buderus by the installer cleared it up. Three years running and I think it's worth ever penny. Good luck....See MoreUser
16 years agojohnxyz
16 years agozl700
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16 years agozl700
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16 years agozl700
16 years agojohnxyz
16 years ago
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