Typical Hardy Installations
Driveways and Walkways
The Hardy Furnace hot water
system can be used to melt snow and ice from driveways and sidewalks. Hot water
is pumped from the Hardy through tubing under the concrete, which radiates
heat, thus melting snow and ice.
Hot Water Heater
The domestic water line connects to a heat exchanger on the Hardy
furnace. The pressure on the supply line forces water through the heat
exchanger when you open a hot water faucet inside your home. As this water is
passed through the heat exchanger it is heated and then goes in the cold water
input on your hot water heater, thus preheating all your domestic hot water.
This provides hot water for all your household needs. This will produce an
immediate and dramatic decrease in your hot water heating cost.
Bath, Shower, Kitchen and Laundry
The Hardy provides hot water for your kitchen and laundry from hot water
stored in the hot water heater preheated by the heat exchanger on the Hardy
Furnace
Dairies and Shops
The Hardy provides hot water for your dairy and shop from the hot water
stored in the hot water heater preheated by the heat exchanger on the Hardy
Furnace. The shop can be heat by a Hydronic or forced air system.
Swimming Pools
The Hardy can heat your swimming pool with a heat exchanger swimming
pool kit option which includes a pool pump, pool thermostat, and low limit
sensor to provide the most effective and efficient way to heat your swimming
pool.
Forced Air System
A hot water heating coil is installed in the supply side of your new or
existing air handler and ductwork. A new wall thermostat which regulates heat
from the Hardy Furnace performs two functions: when it senses your need for heat
according to your temperature setting, it turns the water pump on to circulate
the hot water through the coil and secondly turns on the blower inside your
central unit to force air across the hot water coil. This forces hot air into
your central duct system. Your existing furnace can serve as a backup heating
source.
Hydronic System
The Hardy Furnace can be connected directly to a new or existing boiler
heating system. The Hardy circulating pump supplies the flow of hot water. The
existing pump, zone valves, and baseboard radiation transfer the heat through
the house. The existing boiler system can serve as a backup heating source. The
Hardy can be connected to any existing Hydronic heating system that operates at
180 degrees Fahrenheit or less.
Radiant Floor Heating
The Hardy Furnace can supply the necessary hot water to provide heating
comfort for your Hydronic radiant floor system. The water circulates from the
Hardy Furnace tubing inside the concrete or wood floor construction. With the
Hardy hookup, the system temperature can be controlled on a room-by-room basis.
Energy is spent only when and where needed. Strategically placed thermostats
recognize the deviation in temperature and react promptly with efficient and
economical Hardy heat. Areas of the house not used can be set back to conserve
energy.
Fan Coil Unit
Homes without existing duct work can enjoy the advantages of Hardy heat
with the Hardy Fan Coil Unit. The fan coil unit can be located central to the
areas to be heated. Water is circulated from the Hardy Furnace through the fan
coil unit in your home. The fan in the fan coil unit forces air across the hot
water coil sending hot air into the area to be heated. The temperature of your
home is regulated by a thermostat mounted on an electrical outlet adjacent to
the fan coil unit.
The Hardy Design
The Hardy Outside Woodburning Furnace is designed to be located next to
your firewood storage for convenient loading, normally twice a day. This
removes the fire danger from your home and keeps wood trash, smoke and ashes
out of your home. The Hardy Furnace does not require special equipment to
transport or relocate. The furnace firebox is constructed of 14 and 16 gauge
304 stainless steel for the best heat transfer possible. The heat transfer
efficiency is three times better with 16 gauge 304 stainless steel than with
3/8" carbon steel. The all stainless steel firebox also resists rusting
and burnout that occur in standard carbon steel. The stainless steel smoke
stack that passes through the water chamber resisting burnout and corrosion.
The insulated all stainless steel firebox door and ash door hold the heat in
and resist burnout and corrosion. The firebox comes standard with thick, heavy
cast iron grates to make weekly ash removal simple and fast. The use of
chemicals inside the water tank is not necessary because of the corrosion
resistance of 304 stainless steel. Since hot water evaporates, Hardy invented a
condenser stack located on the rear of the furnace that condenses the steam and
returns it to the water tank. The water tank is vented to the atmosphere to
eliminate the safety hazards common with a
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pressurized
boiler. Standard features on Hardy Furnaces are an adjustable aquastat,
combustion blower for damper control, 4GPM at 20 feet of head circulator pump
with an on/off control relay, and automatic water level controls. The
Standard Hardy also comes equipped with a heat exchanger to provide hot water
for your domestic use. The Hardy provides hot water for hot air duct systems,
water baseboard, radiant floor heat, unit heaters and other existing Hydronic
systems. The Outside cover is constructed of 24 and 26 gauge 304 stainless
steel to give you years of maintenance free service. The stainless steel
cover will not fade, needs no painting and does not require any weather
protection.
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The primary Hardy design
goal is to give years of good service and make it easy to maintain. 
