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Conversion to gas? ? ?

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Conversion to gas? ? ? Ray 05-08-2008
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Posted by Paul M. Eldridge on May 8, 2008, 12:27 pm
wrote:

>We live in a six-unit coop apartment building with an oil-fired boiler which
>supplies radiator heat throughout the building.
>
>We installed a new boiler in 2006 at a cost of $28,000. At the time we
>considered switching from oil to gas, but were told that we likely would
>have to run new gas supply lines from the street to the building, and this
>could cost as much as $20,000. So we opted to continue with oil.
>
>Based on current prices, gas costs only about half as much as oil to produce
>the same heat. So we are reconsidering switching to gas.
>
>Leaving aside the cost of installing new gas-supply lines, can anyone give
>me a ballpark figure on how much it would cost to switch the new furnace
>from oil to gas? Or possibly even have a dual supply system so that we could
>switch to gas or oil depending upon the costs at a given time?

My residential boiler is certified for both oil and natural gas and I
chose this particular model for this reason. I'm told that all they
have to do is replace the current burner head with the equivalent gas
version. Perhaps this is possible for you too.

Cheers,
Paul

Posted by Joe on May 8, 2008, 2:33 pm
> We live in a six-unit coop apartment building with an oil-fired boiler whi=
ch
> supplies radiator heat throughout the building.
>
> We installed a new boiler in 2006 at a cost of $28,000. At the time we
> considered switching from oil to gas, but were told that we likely would
> have to run new gas supply lines from the street to the building, and this=

> could cost as much as $20,000. So we opted to continue with oil.
>
> Based on current prices, gas costs only about half as much as oil to produ=
ce
> the same heat. So we are reconsidering switching to gas.
>
> Leaving aside the cost of installing new gas-supply lines, can anyone give=

> me a ballpark figure on how much it would cost to switch the new furnace
> from oil to gas? Or possibly even have a dual supply system so that we cou=
ld
> switch to gas or oil depending upon the costs at a given time?

Our gas company (Central Illinois) only charges for new lines for the
amount more than 60 feet. Check your supplier for similar fees.

Joe

Posted by Edwin Pawlowski on May 8, 2008, 10:14 pm

> We live in a six-unit coop apartment building with an oil-fired boiler
> which supplies radiator heat throughout the building.
>
> We installed a new boiler in 2006 at a cost of $28,000. At the time we
> considered switching from oil to gas, but were told that we likely would
> have to run new gas supply lines from the street to the building, and this
> could cost as much as $20,000. So we opted to continue with oil.
>
> Based on current prices, gas costs only about half as much as oil to
> produce the same heat. So we are reconsidering switching to gas.
>
> Leaving aside the cost of installing new gas-supply lines, can anyone give
> me a ballpark figure on how much it would cost to switch the new furnace
> from oil to gas? Or possibly even have a dual supply system so that we
> could switch to gas or oil depending upon the costs at a given time?

The boiler installer should be able to give you a close estimate on the
phone. The burner head and some controls have to be replaced. When figuring
in the cost difference, include the lower maintenance costs too. Gas burns
much cleaner so you save a few hundred bucks a year there too.



Posted by Pete C. on May 9, 2008, 3:28 am

Edwin Pawlowski wrote:
>
> > We live in a six-unit coop apartment building with an oil-fired boiler
> > which supplies radiator heat throughout the building.
> >
> > We installed a new boiler in 2006 at a cost of $28,000. At the time we
> > considered switching from oil to gas, but were told that we likely would
> > have to run new gas supply lines from the street to the building, and this
> > could cost as much as $20,000. So we opted to continue with oil.
> >
> > Based on current prices, gas costs only about half as much as oil to
> > produce the same heat. So we are reconsidering switching to gas.
> >
> > Leaving aside the cost of installing new gas-supply lines, can anyone give
> > me a ballpark figure on how much it would cost to switch the new furnace
> > from oil to gas? Or possibly even have a dual supply system so that we
> > could switch to gas or oil depending upon the costs at a given time?
>
> The boiler installer should be able to give you a close estimate on the
> phone. The burner head and some controls have to be replaced. When figuring
> in the cost difference, include the lower maintenance costs too. Gas burns
> much cleaner so you save a few hundred bucks a year there too.

You aren't suggesting that they can skip the annual service on the
boiler are you??? Gas may not need to have a nozzle and filter changed
like oil, but it certainly needs an annual service just like oil,
particularly for a commercial sized unit like the OP has. The cost of
that annual service isn't going to be any different since a nozzle and
filter account for about $10 worth of materials.

Posted by Edwin Pawlowski on May 9, 2008, 5:54 am

> You aren't suggesting that they can skip the annual service on the
> boiler are you??? Gas may not need to have a nozzle and filter changed
> like oil, but it certainly needs an annual service just like oil,
> particularly for a commercial sized unit like the OP has. The cost of
> that annual service isn't going to be any different since a nozzle and
> filter account for about $10 worth of materials.

We run two 125 HP boilers fired with gas. They are checked for efficiency
every two months. We are, in fact, putting on controls at $45,000 to gain
just 2% in efficiency. They get opened and cleaned once a year and the fire
side gets a quick brushing. Takes one person about an hour

We used to run a smaller (40 HP) oil fired boiler. It had to be opened
every three months and it took two men about 4 hours to clean, vacuum,
dispose of the soot, dispose of their now filthy coveralls, breathing
apparatus, and then another hour to clean up the boiler room.

Now you say the cost of annual service is not going to be different?



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