Milwaukee Heating & Air Conditioning FAQs

It's possible the question you have about your heating service or air conditioner is answered right here in print. Southeastern Wisconsin residents will find the answers to many of our most asked questions here on the website. If you don’t find the answer to your question or if you just aren’t in the mood to read, please call the D & M Heating & Air Conditioning offices with any question, any time. To set up an appointment for one of our NATE trained HVAC Service Technicians to come to your home simply call (414) 281-5350 or email your Wisconsin home heating and cooling team by clicking this text. At D & M the entire team is, “At your service.”

Click on the question to go to the answer.

What is "high efficiency" for heating? For Cooling?
What is SEER?
How does a high efficient furnace work?
What else can make my Milwaukee home more comfortable?
What size should my furnace or A/C be?
Which way does my filter face?
How often should the HVAC system be looked at?
What is NATE certification?
Where did my Freon go?
Can I still get Freon?
How do you find a leak?
What about the new refrigerant, Puron?
What is that black stuff in my drain hose?
What is that black stuff on the walls and registers?
Why are my windows wet?
Why are my sinuses dry? Woodwork splitting? Carpet giving shocks?
What can I do to help allergies?
What is an HVR or ERV?
What does ultraviolet light do?
What about a HEPA filter?