Help Picking New System for Oil to Gas Conversion

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Old 08-12-14, 11:10 AM
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Help Picking New System for Oil to Gas Conversion

I have done a brief search and read several threads but have not found any good ones that compare system/brand types and describe pros and cons. Can someone post a link to a thread where I can get started?

I know the first thing to do is a heat loss calculation using the slant fin sticky thread and will do it this week.

Here are some general specs:
Raised Ranch 1950
~2100sq-ft including finished basement
Baseboard hot water oil heating system
currently 3 zones

Here is a heavily detailed thread of my existing system that NJ helped with some issues I had with my system last winter:

http://www.doityourself.com/forum/bo...turn-cold.html
 
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Old 08-12-14, 04:47 PM
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Hey DJ! How's things in Taxachusetts?

Take a look at the Burnham ES2 series.

I'm betting the heat loss is going to come in around 60K BTUH, but that might be a little shy for a decent recovery time on the indirect water heater.

The ES2-3 is probably going to be too small, so you might have to look at the 4 section.

ES2-4 - Burnham ES2-4 - ES2-4, 77,000 BTU Output High Efficiency Cast Iron Boiler (NG)

Here is a heavily detailed thread of my existing system
That was some marathon thread wasn't it? And for it to turn out to be the pump... jeeze...
 
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Old 08-13-14, 10:25 AM
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Hey NJ great to hear from you. Yes that was a crazy thread/problem. I still have not taken apart that damn pump to see why it failed but do promise to get to it and add it to the thread.

*edit* Removed question about difference is between a Cast iron boiler vs. high efficiency stainless steel?

I got a rough quote from a guy that said he likes to use the Bosch Greenstar boiler (link below) and a Superstor SSU-45 indirect water heater, stainless steel lined tank with a life time warranty. This quote came in right around $10k - $1.8k in rebates. This quote includes removing the old system and build permits. Seems like a nicely compact system but I know nothing about it.

Bosch Greenstar Greenstar 131 | Greenstar Space Heating & Domestic Hot Water | Bosch Water Heaters

I have a second guy coming on Friday he is going to do a full heat loss calculation for me which is nice. I think I remember you saying a rule of thumb is ~ 25 BTUH / sqft so I was guessing the heat loss should come in around 55k. This guy said he replaces a lot of Bernham systems so has a slight bias against them but will install it if that's what I want. With that said I will look into reviews of the system you mentioned.
 
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Old 08-13-14, 10:30 AM
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Interesting web page I found on a guy that describes why he doesn't like high efficiency stainless steel boilers:

30 Reasons Why Cast Iron Boilers are a Better Value Than Stainless Steel or Cast Aluminum | ProTech HVAC

Maybe I answered my own question.
 
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Old 08-14-14, 08:12 AM
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Don't forget to look into any utility company rebates that might be available to you. National Grid has the Burnham ES2 boilers on their list.
 
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