need to know more about CNG - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 05-30-2004
Member
 
Join Date: Jun 2003
Posts: 39
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
winslow59 is on a distinguished road
need to know more about CNG

We are considering a Sabre 34-I as our next boat. This is a step up in size and quality for us. The boat we may make an offer on has a CNG stove & oven. I (we) are not familiar with this cooking fuel as used on a boat - what to expect in cooking, availability, safety, what a proper installation should look like, etc.
Reply With Quote Share with Facebook
  #2  
Old 05-30-2004
Member
 
Join Date: Jan 2004
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
jkumin is on a distinguished road
need to know more about CNG

We had a boat 20+ years ago with CNG, since then our boats have had propane. There is theoretically a little different heat value from the two fuels but in practice they seem to cook about the same, like a gas stove at home. The advantage of CNG is it''s lighter than air, so gas from a leak drifts up and out the normal ventilation openings. Propane is heavier than air so a leak pools low in the bilge and poses an explosion hazard. We have come to believe that a proper propane installation (which includes a sensor under the stove with an alarm among other things) is adequately safe. The big negatives of CNG are storage and availability. CNG cannot be compressed into a liquid so it''s stored under high pressure in cylinders much like scuba tanks. An equivalent amount of fuel takes much more space than propane. You exchange the empty cylinder for a full one and availability is a real issue. Check to see where you can do this around your normal cruising area, my sense is it''s getting harder to find. If you go far afield, it can be trouble.

If CNG availability turns out to be a problem, many stoves (check with the manufacturer) can be re-jetted to burn propane. Often CNG installations have the tanks in a lazarette in the open, counting on the lighter-than-air for safety. To convert to propane you need a proper vapor tight locker, vented overboard. These can be bought as aftermarket kits and installed where the CNG tanks went.

I wouldn''t let the CNG issue deter you from the Sabre 34. If all else fails convert to propane.
Reply With Quote Share with Facebook
  #3  
Old 05-31-2004
DelmarRey's Avatar
Senior Member
 
Join Date: Aug 2001
Posts: 258
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
DelmarRey is on a distinguished road
need to know more about CNG

Actually CNG can be compressed to a liquid @ 165ļ below 0. But to bring it back it has to go threw a pump. Which is only convenient in large quanities.
CNG is becoming more available everywhere, you just need to look. With the prices of gasoline the way they''re going CNG is becoming very popular real fast. We''ll be setting up another station for the public right next to our City unit. We already have a taxi company buying from us. We have around 100 cars and trucks running on CNG now.
CNG is much safer than propane, just not as available, but soon that will change.
We have one large station downtown and we''re setting up another in the North county besides the one for the public.
I''ve cosidered converting my vessel to CNG but I think I''ll be going electric instead.

.................................._/)

Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -4. The time now is 10:51 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.