Restrictive covenants are not considered illegal, but restrictions that are particularly exacting have been found to limit the ability of an individual to do business. In these cases, some courts have found a specific restrictive covenant agreement not to be valid. That is, the court in question would not hear the case.
1 Because tankless water heaters require a 220V/240V electrical outlet or larger gas pipes than found in an average home plus a stainless steel ventilation system, installation can add $1,000-$3,000 or more, bringing total costs to $1,800-$4,500. A central tankless water heater providing hot water for an entire house can cost $800-$3,000 or more, depending on gpm capacity and whether it's gas or electric, plus features like a safety temperature lock or a remote control.
Initial Costs Tankless Water Heaters. The most inexpensive option in terms of initial costs is the electric tankless water heater. A whole house tankless heater that operates on electricity typically runs from $500-700, while a gas powered tankless heater may cost $1,000 or greater.nlike old tank-type water heaters that keep gallons and gallons of hot water heated twenty four hours a day, seven days a week, tankless water heaters only use energy to heat water as it is being used.