Lehr Dam - Cultural Feature (Dam) in McIntosh County. Lehr Dam is a cultural feature (dam) in McIntosh County. The primary coordinates for Lehr Dam places it within the ND 58460 ZIP Code delivery area. In the Maps and Aerial Photos section below, you'll find links to: (1) Local area photos around Lehr Dam, (2) A listing of the nearest hotels to Lehr Dam and (3) Driving Directions to Lehr Dam from almost anywhere. The location of Lehr Dam is marked on an interactive map.
Up to 400 square feet: 25 or 30 pint. Up to 800 square feet: 40 pint. Up to 1000 square feet: 50 pint. Up to 1300 square feet: 65 pint. For coastal areas the square foot coverage will be reduced as much as 50%. All of these figures are based on an 8â high ceiling.
It takes one Btu per pound of water to raise the temperature by one degree Fahrenheit. The standard size of American hot water heaters is 40 gallons, and each gallon of water weighs 8.33 pounds. Calculate the Btu. If you have a 40-gallon water heater, that is 40 multiplied by 8.33, or 333.2 pounds of water. So you need 333.2 Btu to raise the water 1 degree Fahrenheit. However, most areas need more than one degree of heat added to the water to make it warm enough for showering or washing clothes or dishes.