Hummingbird Feeder Heater - No frozen feeder anymore

What you will need for one heater:

• Hummingbird feeder heater body E12 
• E12 socket and cord set (see photo) 
• E12 incandescent bulb (see photo for size reference)
• 3M VHB tape 
• Aluminum foil tape (optional)

This is a hummingbird feeder heater designed to stick on any feeder base dimensions of 4-¼ inches (10.8 CM) or larger, using 3M VHB(Very High Bonding) tape to solidly stick to the feeder, using a E12 size incandescent bulb as a heat source to warm up the feeder during cold winters.

This model is designed to print face down with no support needed(see photo), after you print out the heater, you can use some Aluminum foil tape to cover the inside surface, so the heat can be directed to the feeder, but this step is optional, it will only make the heater more efficient.

Warning! Before installing the E12 socket and cord set, please make sure the E12 socket is firmly pushed into the metal spring, so the socket won't come loose in the heater, or you might risk the bulb touching the sides of the heater or the feeder, in the worst-case scenario, the bulb will melt the plastics. 

Install the E12 socket into the heater by pinching the spring, it should be held on firmly by the heater body, you can replace the bulb by pinching the spring again to release the socket from the heater.

What bulb wattage to buy? I will recommend getting the 7W incandescent bulb first, if the nectar doesn’t freeze after a few days, then this is all you need, but if the nectar starts showing freezing, then try to use the 15W incandescent bulb.

If this still can't keep the nectar from freezing, then finally there's a 25W incandescent bulb to use, but you need to keep an eye out for the nectar temperature, it can get quite warm, what we are trying to accomplish is not freeze the nectar, definitely not trying to cook the nectar, high-temperature nectar can be very harmful to the Hummingbirds.

I use the 7W incandescent bulb in my feeder heater and it works great, the nectar is not freezing, and the bottle is still cold to the touch.

Warning! Before you wash or replenish the feeder, turn off the lights, wait at least for 5 minutes to let the incandescent bulb cool off, then remove the bulb with the bulb socket from the heater, after you finished, make sure everything is thoroughly dry before you replaced the bulb with the bulb socket.

Finally, you can get the parts from here

E12 socket and cord set https://amzn.to/3rluxeh

7W E12 incandescent bulb https://amzn.to/3A8j5GT

15W E12 incandescent bulb https://amzn.to/3rn6VGm

25W E12 incandescent bulb https://amzn.to/3A6lSjZ