Topic Founder & Author: Dennis C. McCreery. First of all, outer burial containers and burial vaults are not required by state or federal law. They are required by most cemetery rules and regulations. Cemeteries want a casket placed in an outer burial container or burial vault to prevent the ground from sinking in above the casket.
A heat pump will replace both the furnace and air conditioner/central air unit. It may be costly to install, with the national average falling between $3,956 and $6,702, but it will save you considerable money in energy costs.
As you can imagine, both these options have their drawbacks. Average Monthly Cost: $75-$150 Heat Pumps Heat Pumps, which use electric instead of gas or propane, are a relatively efficient way to heat (and also cool) a swimming pool.