NP ALASKA said:I am looking at the model 25 and its 15K plus. Not counting delevery, storage, hook up, pumps etc.
Not here Chris, ASME is required for a tank that runs over 15 psi. Below that any size tank can be used without that certification, RandyTarm Sales Guy said:Hi Morgan, the tanks we sell are not particularly 'special' but they are ASME stamped tanks which certainly adds to the cost. Any pressurized tank over 120 gallons is required to be ASME stamped. You will notice that all the indirect water heater manufacturers have tanks going up to 119 gallons which allows them to produce tanks without the ASME stamp.
Getting a tank made locally may make good financial sense, especially with the freight costs to AK. However, your inspector will want to see an ASME stamp on whatever tank you choose. Also wanted to mention that 400 gallons would be more than enough buffer for the 32/38 P4 - we recommend 300 gallons. If you have room/ceiling height for a vertical 400 gallon tank, by all means go for it, but I really don't think you need more gallons than that. With its wide modulation and, of course its ability to self start/stop, there is really not nearly as much need for thermal storage as with a wood boiler. Buffer tanks allow for higher efficiency by creating longer run times and dramatically reducing the amount of on/off cycling that the boiler does, but the required gallons to do that are not near what it takes to optimize a wood boiler system.
Chris
Singed Eyebrows said:Not here Chris, ASME is required for a tank that runs over 15 psi. Below that any size tank can be used without that certification, RandyTarm Sales Guy said:Hi Morgan, the tanks we sell are not particularly 'special' but they are ASME stamped tanks which certainly adds to the cost. Any pressurized tank over 120 gallons is required to be ASME stamped. You will notice that all the indirect water heater manufacturers have tanks going up to 119 gallons which allows them to produce tanks without the ASME stamp.
Getting a tank made locally may make good financial sense, especially with the freight costs to AK. However, your inspector will want to see an ASME stamp on whatever tank you choose. Also wanted to mention that 400 gallons would be more than enough buffer for the 32/38 P4 - we recommend 300 gallons. If you have room/ceiling height for a vertical 400 gallon tank, by all means go for it, but I really don't think you need more gallons than that. With its wide modulation and, of course its ability to self start/stop, there is really not nearly as much need for thermal storage as with a wood boiler. Buffer tanks allow for higher efficiency by creating longer run times and dramatically reducing the amount of on/off cycling that the boiler does, but the required gallons to do that are not near what it takes to optimize a wood boiler system.
Chris
Tarm Sales Guy said:Any details .... Chris
NP ALASKA said:Well, thanks everyone for input. We have made the decision to go ahead with the Froling P4
I will order it this week, they say about 4 weeks for delivery to Alaska.
Not sure total cost yet but it is definately over 20K at this point.
I will submit pics as I get it and under take the task of installation with my buddy whom is a heating specialist and some help from dad who is heavy into controls and such.
Should be fun.
Regards to all
NP ALASKA said:Sounds good i will let you know if I come that way this summer again.
I am glad to see you estimates, it makes me more confident in my pursuit of a new boiler.
I have 4800 Sqft. 3771 2 story home, 1029 sqft Garage/mechanical room. It is double wall construction with 12 incha walls and a valuted R60 Roof.
I plan to put my system in the front of the garage and will still be able to put trucks inside. Toys are in the shop across the driveway.
I am thinking about 1100 gallon tank from Greer tied to a 200-300 gallon tank. The smaller tank will be used when I am in pellet mode, isolateing the 110 gallon tnak out of the equation. When I switch to wood they all come into play giving me 13-1400 gallon storage.
As for how I burn so much wood. Well I am heating close to 11,000 sqft. between 4 buildings. House/Garage, shop, 2 business buildings. These are all tied to a central boiler 7260 OWB. I think I may hit 60 cord this year.
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