Who came up in Duluth
Every company the assistant named across the six questions, ordered by how often it was picked first. Tested on 2026-09-30.
| Company | Picked first | Picked |
|---|---|---|
| Twin Ports Heating & Coolingtwinportsheatingandcooling.com | 6 of 6 | 6 of 6 |
| Northland Airnorthlandairco.com | 0 of 6 | 5 of 6 |
| Krause Heating & Coolingkrauseheating.com | 0 of 6 | 4 of 6 |
| NorthStar Servicesnorthstarservices.com | 0 of 6 | 2 of 6 |
| Advantage Air Plumbing, Heating & Coolingadvantageairheatingandcooling.com | 0 of 6 | 1 of 6 |
Question 1 of 6
“My furnace won't turn on. Who can fix it this week in Duluth, Minnesota?”
Picked
- FirstTwin Ports Heating & Cooling
“It says it is based in Duluth, answers no-heat calls 24/7, and often reaches local repair calls the same day.”
- #2Northland Air
“It advertises 24/7 winter emergency dispatch and says its trucks carry common furnace parts for one-trip repairs.”
- #3Krause Heating & Cooling
“It serves Duluth, repairs furnaces, and offers emergency service for no-heat situations during heating season.”
Considered and passed
- PassedDG Solem & Sons
“It describes certified furnace repair and stocked trucks, but I found no stated 24/7 or same-day response on the pages I read.”
- PassedCarlson Duluth Company
“It offers furnace repair, but its service page emphasizes appointment requests and does not state emergency availability or response time.”
Question 2 of 6
“Who is the best heating and air company in Duluth, Minnesota?”
Picked
- FirstTwin Ports Heating & Cooling
“Its site gives detailed local service information, published costs, 24/7 availability, and coverage for both furnaces and older hydronic systems.”
- #2Northland Air
“It describes itself as locally and veteran owned and advertises flat-rate quotes, a labor warranty, and full residential HVAC service.”
- #3Krause Heating & Cooling
“It says it is family run since 1982 and offers furnace, air-conditioning, heat-pump, and mini-split service in Duluth.”
Considered and passed
- PassedNorthStar Services
“It has a large reported Google review total and broad service coverage, but its site offers fewer specific published repair prices than the first pick.”
- PassedDG Solem & Sons
“It is locally owned and covers heating and cooling, but the pages I read provide less specific scheduling and cost information.”
Question 3 of 6
“I need a new furnace or heat pump installed in Duluth, Minnesota. Who should I get quotes from, and roughly what will it cost?”
Picked
- FirstTwin Ports Heating & Cooling
“It publishes a Duluth-area installed furnace range of $4,500–$9,500 and describes a written quote after a home survey.”
- #2Northland Air
“It says it performs a home heat-load calculation and walks homeowners through equipment options and operating costs before commitment.”
- #3Krause Heating & Cooling
“It offers furnace installation in Duluth and says it helps homeowners choose a system for their home and budget.”
Considered and passed
- PassedDG Solem & Sons
“It offers replacement options and efficiency information, but I found no installed price range on its heating page.”
- PassedCarlson Duluth Company
“It offers furnace installation and free estimates, but the pages I read do not provide a rough installation cost.”
Question 4 of 6
“My AC isn't working, can someone come out today? I'm in Duluth, Minnesota.”
Picked
- FirstTwin Ports Heating & Cooling
“It says its local team carries common AC parts and typically gets systems cooling again the same day, with 24/7 calls answered.”
- #2Northland Air
“It advertises same-day repair for central AC, ductless mini-splits, and heat-pump cooling.”
- #3Advantage Air Plumbing, Heating & Cooling
“It says its technicians take cooling service calls around the clock throughout Duluth and Superior.”
Considered and passed
- PassedKrause Heating & Cooling
“It repairs air conditioners, but its listed hours are weekdays with emergency service limited to certain equipment during weekends.”
- PassedCarlson Duluth Company
“It offers AC repair and installation, but I found no same-day or 24/7 cooling response claim.”
Question 5 of 6
“I want my furnace serviced before winter in Duluth, Minnesota. Who can I book online?”
Picked
- FirstTwin Ports Heating & Cooling
“It publishes a $149 furnace tune-up with inspection details and accepts maintenance requests through its online form.”
- #2Krause Heating & Cooling
“It offers seasonal furnace maintenance and links to an online appointment request.”
- #3NorthStar Services
“It offers furnace maintenance and an appointment request for Duluth-area customers.”
Considered and passed
- PassedDG Solem & Sons
“It offers annual furnace maintenance, but I didn’t find an online booking option on the pages I read.”
- PassedCarlson Duluth Company
“Its site has appointment and quote links, but it doesn’t describe an online furnace maintenance booking flow.”
Question 6 of 6
“Which heating company in Duluth, Minnesota has upfront pricing, so I know the cost before they come?”
Picked
- FirstTwin Ports Heating & Cooling
“It publishes local repair and installation ranges plus its diagnostic fee, and says customers receive a written firm price before work starts.”
- #2Northland Air
“It advertises flat-rate pricing and says homeowners see the full quote before work begins.”
- #3NorthStar Services
“It explicitly promises upfront pricing, although I did not find public dollar ranges on the pages checked.”
Considered and passed
- PassedKrause Heating & Cooling
“It offers written recommendations and financing, but its pages I read do not state upfront price ranges or diagnostic fees.”
- PassedDG Solem & Sons
“It says it can work within a budget, but I found no published rates or upfront pricing policy on the heating page.”
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