condensing or hi efficient boiler

Floyd_6

Rick,

get us some pictures of your install..
I'd be interested to know what kind of heat loss you finally come up with.
I really don't think you will regret your purchasing that boiler.

Floyd

Mitch_4

Olsen

Hi Rick.

If you have any questions regarding the Olsen Brand of boilers, feel free to give me a call. I work in technical Services at the Olsen division of ECR International and would be pleased to provide you with answers on our product.

You can call me at 888-270-8324 ext 228.

Thank you.

Mike

Rick_17

Hi Floyd

Will send a picture of my currrent and what I replace it with. I had another heat calc done by one of the distributors - I have done 3 heat loss calcs on my house

The gas company - they did the blower door and everything else and came up with 115K btu per hour. I used the slant fin program and the results where pretty high when I did each room but I did a seperate as the house as one room which includes all the windows, I came up with 149K btu and guess what

the distributor came up with 295K. so I am no further ahead but if you do a general guestimate using 10KW/SQ ft and because I have a walk out basement so I will use 7.5 KW/SQ FT x 2150 per level x 3.5 approx conversion to BTU = 132K btu per hour.

I waited 3 weeks for the distibutor results and they want to sell me the new boiler - HUH!

I will decide the boiler tomorrow - either the Olsen quantum 90 - 175 or 200 or the Weil-Mclain Ultra 155

I have to decide ifthe 20%-100% modulation and the outdoor control is worth the difference in price which is quite substanical as opposed to just purchasing the tecmar outdoor control - any thoughts

I will let you know my decision

Floyd_7

Rick....

The blower door test was probably the closer to the actual heat loss that you will experience and that doesn't take into consideration the heat gain that you will have in the house from cooking, electrical appliances, body heat, etc....
going with the higher output BTU of 175k+ ... will not get you anywhere close to the eff. that you are trying to attian....a 90+ boiler that is constantly short cycling will not get you 90+ eff.......that is why just installing a 90+ boiler is no assurance that you SYSTEM will be 90+........go with the boiler that will match it's firing rate to the actual heat loss of the house....then you SYSTEM will actually give you the eff. that you are looking for......then.... your gas bill will reflect the savings and the payback will be short enough to justify the extra cost of the boiler.
Take a minute to consider where energy prices are headed....
you can pay for the beat now or pay the gas co. for years....

Floyd