All Answers (8) 1  This is nice information from wikipedia visit. 2  I guess if you assume the DNA is at rest with an average rise of 3.4 A per base pair, then the length of chr1 would be 3.4A * 249*10^6, i.e. 847*10^6A, i.e. ~85 mm, or 8.5 cm.
Boiler sizing includes two things: 1  The heating and hot water capabilities of the boiler. 2  The physical size of your boiler and whether it will fit in the space you have it destined for.
Repair Cost Factors. The best way to keep your costs down is to perform regular maintenance on your system. Most problems that occur with your boiler are nickel and dime expenses that will add up. It's always less expensive and less of a hassle to try and repair your boiler than it is to replace it.