This humidifier incorporates a restrictor which meters the amount of water supplied to the unit. In a average home the unit will use 37 US Gallons (31 Imp. Gallons, 140 Litres) per 24 hrs of operation. NOTE: Your furnace will not run continuously 24 hrs a day – in an average home the 37 gallons will be used over a 3 day period.
Source: Air King Canada

Unfortunately, the humidity level you set in your home is dependent on the outdoor temperature and since that is constantly changing, so should your indoor humidity. At 24 degrees inside you could set your humidity level at 30-35% without fogging your windows if the outside temperature is around 0 C. As the temperature drops outside, the temperature of the windows on the inside of your home also drops. Therefore you will need to reduce your humidifer setting to prevent excess moisture formation on your windows.

If the unit is operating properly, then the water never actually touches the housing and simply flows through the evaporator pad assembly and out the drain/funnel at the bottom of the housing. If you've got a leak I suspect one of two basic issues:

1) water is flowing into the housing faster than it can flow out. Check your drain hose... is it plugged or does it have any kinks?

2) the water isn't flowing into the evaporator pad assembly like it should be and some/all is going directly into the housing (which isn't sealed and will leak). Did the water tube fall off the evaporator pad assembly? Is water somehow leaking out of the evaporator pad assembly?

Does the green light come on by the supply duct?.....if so... The unit is working....you might want to call customer service.

The size of home that this unit would be rated for is up to 2100 sq.ft.

Unfortunately this unit will not work with your furnace as the unit is heat activated and with the oil it will not get hot enough to activated the unit. It is recommended to use the AK850 which has a stainless steel drum style.

Hi ColinM,
It is recommended to use hard ducting – use hard ducting for any elbows – take the most
direct route when ducting. If this doesn't work I would suggest phoning customer service at (800) 465-7300 to troubleshoot the issue. I hope this helps.

Please visit http://www.waithumidifiers.com/inst... and refer to page 5 to see the instructions on how to mount the unit left handed. If this doesn't solve your issue please call 1-800-250-8767 for technical help. I hope this helps.

In my Wait 6000 takes some time for the unit to open the water valve (you hear the solenoid clicking and see the LED come on) after the fan started blowing air. It can also depend on the inlet air temperature; if it is not hot enough yet, the unit won't start. Wait (no pun intended) until the incoming air is hot.

I buy the pads from Home Depot. Not sure where you are located...