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.
The total installation cost may vary depending on the type of tankless water heater that is installed and the professional who installs it. Understanding what type of tankless water heater to install is the next step. Consumers should choose the type of tankless water heater that is best suited to their needs. For example, a Noritz gas tankless hot water heater of 199,000 BTUs is sufficient for an average household with several bathrooms. Factors such as installing proper ventilation to prevent carbon monoxide poisoning and completely changing the size of gas lines and fittings will take an average of 10 hours.