Does someone have experience that they would share about using evacuated tubes to heat a storage tank? The tank is 1000 gallons in volume, unpressurized, with internal heat exchangers for heat and demand hot water. The tank is extremely well insulated. The operating temperature range of the tank is 120 -170 F summer and 140-195 F winter. Winter heat loss is around 12000 btus per hour on average. The summer months largely supply domestic hot water and in the winter months, the temps have to be higher for efficient baseboard operation. I would like to be able to heat the tank over the shoulder months with solar and depend more on wood through the winter. On the wood side in the summer months, we go up to 10 days between fires and it requires a prolonged warm up period for the Jetstream boiler to prevent damage to its refractory base. Can the tubes provide the water at these higher temperatures ?
We know of a couple that live on a island not too far from here and they have a 20 tube open system and only 4 days last year they did not get a shower, though they said some were pretty cool!
We live on Northern Vancouver Island, BC with mild temperatures but lots of rain.
Allan
We know of a couple that live on a island not too far from here and they have a 20 tube open system and only 4 days last year they did not get a shower, though they said some were pretty cool!
We live on Northern Vancouver Island, BC with mild temperatures but lots of rain.
Allan