Utica boiler vs. Weil McLain

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Old 01-06-07, 02:52 PM
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Utica boiler vs. Weil McLain

We are redoing the heat as part of a renovation of our entire house. The GC is pitching either a Weil Mclain or Utica Boiler (Oil, Hotwater, High efficiency, vented via chiminey, etc)

Based on my limited knowledge I get the sense that the WM is more efficient than the Utica device. (AFUE rating 85 vs. approx 81) and DOE Heating Capacity for a given Oil buruner G.P.H...

Am I reading this correctly. What else should I be thinking about?

Any advice is greatly appreciated.
 
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Old 01-06-07, 03:05 PM
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Did the GC do a heat loss for the house; what did he base the boiler BTU on? A heat loss is a MUST, especially if insulation, weather stripping, or new doors/windows have been installed over the years. Is he doing the work himself? Or, is he subcontracting the install to someone else and taking his cut out of the deal?

You're asking a very difficult question and worried about the least important issues. A good boiler will run like crap if installed wrong; they run as good as the person doing the work. Efficiency is also determined by how well the burner is set up and other factors. Other good brands: Burnham, Biasi, Buderus, etc. All are high efficiency. Ask if your current chimney liner can handle the lower combustion stack temps if you go with a higher efficiency oil unit.

Personally, the GC is LAST PERSON I'd want making my decisions. Find a good pro to work with you. You'll be living with your boiler for the next 20 or 25 years.
 
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Old 01-06-07, 03:35 PM
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Radioconnection is tuned in on that one. If you use the boiler to make your domestic hot water, plan on getting some sort of indirect water heater. DO NOT accept a hot water coil in the boiler. If he is talking about the WM Ultra, maybe. If it is the WM Gold, forget it. Look at Buderus, Energy Kinetics, Burnham. Buy the best you can afford because like radioconnection broadcasts, you will be living with it for the next 20+ years.

Ken
 
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Old 01-06-07, 04:01 PM
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Keep the GC out of the whole heating equation. You really should go get 3 or 4 quotes from reputable heating contractors in the area. GCs don't do servicing and this makes a huge impact on product selection and how it gets installed.
 
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Old 01-06-07, 04:10 PM
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more context

Thanks for the quick responses...Here is some more context.

1) yes a heat loss calculation has been done so the boiler will be sized properly. The calc is based on 180 degree water temperture and is designed to bring enough heat to keep the space at 70 degrees on a zero degree day.

2) the GC is using an HVAC subcontractor to build out the system

3) the heating system is being built to a spec which is in the plans. The spec asks for "weil mclain boiler or approved equal"...the GC and his sub are proposing a utica boiler and stating that it is "equal" and are looking for approval of the substitute.

So all things being equal (e.g. sizing and rest of system design to spec) which is a better boiler? What else should I be asking them about before I allow them to swap utica for weil mclain.

Thank you.
 
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Old 01-06-07, 04:31 PM
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I really wouldn't pick either, nor would I allow them to spec a water temp of 180.
 
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Old 01-06-07, 05:03 PM
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New Boiler

Weil-McLain would be my last choice of anything on the market. There's a lot of far better equipment out there. Burnham (MPO), Buderus (G 115), Crown (CT series), etc, etc. Most definately heat your domestic water with an indirect. A tankless coil is one of the biggest energy wasters on the planet. Face it, the sub works for the GC, not you.
 
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