The T-K3-OS has a built-in power venting system and was designed
specifically for outdoor installations. The T-K3-OS does not
require any additional Category III venting or vent caps, making
installation one step easier for its installers.
Overview
Released in 2007, the T-K3-OS is Takagi's tankless water heater
built only for outdoor installations. The T-K3-OS is one of
Takagi's smaller tankless water heaters. At 13.8 inches wide and
weighing only 40 pounds, its ultra-compact design allows it to be
mounted on a wall or installed between two wall studs using
Takagi's TK-RBO2 recess box, so it's even more inconspicuous. Since
it can only be installed outside, the T-K3-OS is ideal for warmer
climates.
The T-K3-OS features a built-in power venting system, but unlike
any of its predecessors, the new tankless water heater does not
require any additional Category III venting or vent caps, making
installation one step easier for its installers.
It can provide an unlimited supply of hot water continuously
because there is no storage tank to heat and reheat. The T-K3-0S
starts heating water at 0.5 gallons per minute (GPM), and can keep
that endless supply of hot water running from as low as 0.4 GPM up
to a maximum flow rate of 7.0 GPM.
Takagi's newest tankless water heater also features a thermal
rating of 83% for both liquid propane and natural gas, so it is
extremely efficient and environmentally friendly. Since tankless
water heaters only burn gas when hot water is needed, installing
this unit can help homeowners save up to 45% on their monthly gas
bills.
The T-K3-OS also offers four separate temperature settings,
ranging from 113 to 167 degrees, so it does not require the use of
a separate remote control.