Why This Comparison Matters
When I took over purchasing for our 40-person office in 2023, one of the first decisions I faced was how to handle climate control. Our break room had a KitchenAid stand mixer that took up valuable counter space – dimensions roughly 14x16 inches – and our storage closet was stuffed with an AC Infinity dehumidifier and two space heaters that kept tripping breakers. The obvious question: should I invest in a smart thermostat like the ecobee and consolidate, or keep the patchwork of separate devices?
Here’s what I found after running the numbers on total cost of ownership.
The Two Approaches
Option A: Install an ecobee WiFi thermostat (with remote sensors) to zone the office, reduce HVAC runtime, and eliminate the need for space heaters and dehumidifiers.
Option B: Keep the existing manual thermostat, continue using the space heaters for cold spots, and run the AC Infinity dehumidifier in the basement – basically, the piecemeal approach we already had.
I’ll compare them across five dimensions: upfront hardware cost, installation complexity, energy efficiency, maintenance, and comfort consistency.
Dimension 1: Upfront Cost
Option A: An ecobee thermostat runs about $200–$280 at retail (as of January 2025). You might need one or two remote sensors at $40 each. Total hardware ~$300. Installation by an electrician? Another $150–$250 if you’re not doing it yourself.
Option B: The space heater we were using cost $45, the AC Infinity dehumidifier was $220, and the old standalone thermostat was already there. So sunk cost was zero – but these devices have shorter lifespans.
At first glance, Option B looks cheaper. But that’s the classic mistake I made as a beginner: I only looked at the sticker price. The $45 space heater, for instance, pulls about 12.5 amps – enough to overload a 15A circuit if the copier is also on that line. We had to run an extension cord, which created a trip hazard.
Dimension 2: Installation & Setup
Installing the ecobee took me about 45 minutes (I followed the wiring diagram for our Carrier system). The power extender kit was included, and I had to call their support once for the C-wire setup – they walked me through it.
For Option B, we already had the space heater and dehumidifier plugged in. No installation cost, but the heater’s cord was always in the way, and the dehumidifier needed a drain line – we ended up emptying the bucket manually three times a week. That’s hidden labor cost.
My gut said the simpler approach was better. The numbers said the ecobee would pay for itself in energy savings alone. I went with Option A. Turned out my gut was wrong – but only because I hadn’t factored in the time wasted on maintenance.
Dimension 3: Energy Efficiency & Electricity Cost
Using the ecobee’s schedule and presence detection, our HVAC ran about 30% less during unoccupied hours. Based on Q4 2024 utility data, that saved roughly $55/month on our electric bill.
Option B’s space heater, on the other hand, drew 12.5 amps at 120V – that’s 1,500 watts. Running it 4 hours a day added about $0.18/kWh × 1.5 kW × 4h = $1.08/day, or $32/month just for that one heater. The AC Infinity dehumidifier pulled 5.5 amps (660W) and ran 8 hours a day in humid months – that’s another $0.95/day. Total extra electricity: ~$60/month during heating/humidity seasons.
So ecobee actually reduced our base HVAC cost by $55/month, while the piecemeal approach added $60/month. Net difference: ecobee saves about $115/month in energy costs – though I might be misremembering the exact dehumidifier runtime.
Dimension 4: Maintenance & Hassle
The ecobee has required zero maintenance in 14 months – firmware updates happen automatically. The remote sensors needed new batteries once.
Option B: The space heater’s filter needed cleaning every few weeks. The dehumidifier bucket overflowed twice before I set up a hose – that cost me a wet carpet and a call to the cleaning service ($150). And we had two complaints about the heater being too loud during meetings.
Saved $80 by skipping expedited shipping on the ecobee – actually, I paid standard ground and it arrived in 4 days. But the real saving was avoiding those $150 carpet cleanings. Net loss from the cheap approach: at least $300 over six months.
Dimension 5: Comfort & Consistency
With the ecobee’s remote sensor in the conference room, temperature differences evened out. No more hot/cold spots. The thermostat now shows the right reading – earlier we had a recurring issue where ecobee thermostat temperature wrong by 4°F because the sensor was in a drafty hallway. Once I moved it, problem solved.
Option B: The space heater kept one person toasty while the person ten feet away shivered. The dehumidifier made the basement feel comfortable, but the main floor still felt muggy. Inconsistent.
So Which One Should You Choose?
If you’re managing a small office (20-50 people) and you care about total cost over 12+ months, go with the ecobee. The upfront investment is ~$300, but you’ll recover it in under 6 months through energy savings and reduced hassle.
If your office is tiny (under 10 people) and you already own a space heater and dehumidifier, the piecemeal approach might be cheaper in the short term – but watch your amp draw. A single space heater pulling 12.5 amps can easily trip a 15A circuit if anything else is plugged in. You might need to run a dedicated line, and that cost wipes out the savings.
For the KitchenAid stand mixer dimensions (roughly 14x16 inches) – that was a separate purchase for our break room, unrelated to HVAC. But it’s a good reminder: every square inch costs money. By replacing standalone devices with a smart thermostat, we freed up closet space and three power outlets.
“Take it from someone who spent $45 on a space heater and then $150 on carpet cleaning – the cheapest option isn’t always the cheapest. Look at total cost of ownership.”
As of January 2025, the ecobee is our standard recommendation for any office we outfit. Your mileage may vary depending on your HVAC setup, but the math has held up for us.