Invictus, meaning unconquerable or undefeated in Latin, is a poem by William Ernest Henley. The poem was written while Henley was in the hospital being treated for tuberculosis of the bone, also known as Pott's disease.
Expect to pay as much as $5,000 to $7,500 for a ground-source heat pump system. Air-source heat pumps can be found for much cheaper, averaging around $1,500 to $4,000, because the units tend to be simpler, and installation is easier. The cost required to run and repair a heat pump varies with the type of system.It's less expensive to run a ground-source heat pump because the ground and water have a relatively constant temperature that allows the heat pump to operate efficiently.Ground-source systems also have the advantage of not being exposed to the outdoor weather, which prevents a lot of wear and tear.xpect to pay as much as $5,000 to $7,500 for a ground-source heat pump system. Air-source heat pumps can be found for much cheaper, averaging around $1,500 to $4,000, because the units tend to be simpler, and installation is easier. The cost required to run and repair a heat pump varies with the type of system.
1 A gas heater is usually a good choice for a spa as a heat pump takes to long to heat a spa, and if you want to get in the spa in lower outside temps. a heat pump is inefficient. 2  Heat pumps cost about $2,500 and gas heaters are in the $1,500 range.eat Pumps. You can figure about 5,000 watts or 5 kilowatts per hour per 100,000 BTUâs for a heat pump. For a typical 100,000 BTU heat pump, thatâs 5 kilowatts per hour. The national average for Electricity runs $.13 cents per kilowatt hour.