There isn’t one universal answer for buying heating and cooling equipment. I used to think price was the answer. Then I spent six years tracking every purchase order for a mid-sized facility services company, and the real answer is: it depends on what you’re running, how long you’ll own it, and what happens if it fails.

But “it depends” is useless without categories. The requests I see in our procurement system usually fall into three scenarios:

  • Permanent heat — a Dimplex baseboard heater for a room, office, or hallway.
  • Precision cooling — a Dimplex MRI chiller for medical equipment or another process that can’t tolerate temperature swings.
  • Portable air movement and filtration — a Milwaukee fan, a Ryobi fan, or even a Can-Am X3 air filter for dusty job sites.

Different problems, same rule: total cost of ownership beats the sticker price. Let me walk through what I check in each scenario.

1. Permanent Heat: Dimplex Baseboard Heater

If you’re installing a Dimplex baseboard heater, the cheapest model on the spec sheet can still be the most expensive unit in the building. Not because it fails, but because installation costs and running costs hide in the fine print.

I learned this in 2021, when we swapped out one of those portable oil-filled radiators in a small office for a wall-mounted Dimplex baseboard heater. The heater itself was around $300. The hidden costs were the circuit and the wall work. By the time our electrician ran a 240-volt circuit and we patched drywall, the project was closer to $900.

Was it worth it? Over the next three winters, yes. The old radiator ran on 1500 watts and never shut off. The Dimplex unit was sized correctly after a heat-load calculation, so it cycled instead of running continuously. The first quarter’s electricity bill dropped about 18%. That’s the story I use when somebody tells me a $200 space heater is a better deal.

Even after we placed the order, I kept second-guessing whether we should have pushed for a heat pump instead. Didn’t relax until the first winter utility bill landed.

What I’d tell you if you’re buying baseboard heaters for a whole building:

  • Do a heat load calculation first. Guessing wattage is how you overspend on wire and thermostat capacity.
  • Look for UL 1042 listing and a thermostatic control that actually anticipates temperature, not just an on/off switch.
  • Compare installed cost, not material cost.
  • Don’t automatically choose the highest-efficiency model if you only heat the space a few hours a day. The payback might be longer than your lease.

That last point is the one most people miss. Energy efficiency is a good thing, but a premium efficiency unit only pays back through runtime. For a room used a few hours a week, the extra cost can sit unrecovered for years. Sometimes the right answer is a lower-wattage, less expensive unit matched to actual use.

2. Precision Cooling: Dimplex MRI Chiller

An MRI chiller is a different animal. In that scenario, I am not looking at the purchase price at all. I’m looking at the cost of downtime.

For a Dimplex MRI chiller or any precision chiller, the unit keeps the magnet room temperature stable. If the chiller trips during an imaging block, the facility doesn’t just lose electricity. It loses billable MR time, possibly a service call, and sometimes scanner recalibration. If that costs you $500 per hour of scanner time, a $1,000 difference between chiller vendors is irrelevant.

Why does downtime matter? Because a “cheaper” chiller with a weak service network can fail in a way that turns a $2,000 savings into a $2,000 emergency repair.

My direct experience is with lab and process chillers, not MRI installations, so I’ll be honest about the sample size there. But the procurement logic is the same: what’s the cost of the failure mode?

Things I would ask before buying an MRI chiller:

  • Is the service network local? A cheaper unit with no nearby technicians is a gamble.
  • What’s the refrigerant and compressor reliability history? Not the brochure, the actual installed base.
  • Does the quote include water treatment, filtration, and startup? Those are the charges that show up after the PO is signed.
  • What’s the planned maintenance schedule? A “low maintenance” chiller still needs checks.

In Q2 2024, I compared two chiller quotes for a lab project. Vendor A quoted $18,500. Vendor B quoted $16,200. The lower one looked like a win until I read the line items: startup supervision was extra, the remote monitoring module was extra, and the first-year preventive maintenance wasn’t quoted. Total difference was only about $400, not $2,300. I built a cost calculator after getting burned on hidden fees twice.

3. Portable Air and Filtration: Milwaukee Fan, Ryobi Fan, and Can-Am X3 Air Filter

Then there are the small purchases that still end up on a procurement card. This is where “just get the cheap one” logic does the most damage, because the totals are small enough that nobody audits them.

For a job-site fan, the real question is not whether a Milwaukee fan moves more air than a Ryobi fan. It’s which one fits the battery system you already own. If your crew is already on Milwaukee M18 or Ryobi 18V One+, the bare tool version is usually a better move than buying a fan with its own charger. If you pay for a new charger and two batteries, a “cheap” fan can end up costing as much as the premium one.

One fan I approved on paper looked fine. The spec sheet said it moved enough air. My gut said a plastic switch wouldn’t survive the site. It didn’t. Month two, the switch broke. The expected life never made it onto the price comparison, and that was my mistake.

Same logic applies to a Can-Am X3 air filter. A filter is a $20 or $50 consumable. If you ride in dust, an air filter isn’t a place to save $30. Engine repair after dust intrusion costs more than a box of filters. That doesn’t mean you need the most expensive filter on the shelf. It means you should replace it on the schedule in the owner’s manual, not when the performance drops.

Real talk: if the equipment is exposed to dirt, drops, or full shifts, price per month of life matters more than price per unit.

How to Tell Which Scenario You’re In

If you’re trying to decide where to spend your budget, ask these three questions:

  1. Does this equipment run every day? If yes, efficiency and reliability dominate.
  2. What happens if it fails? If failure stops a revenue-generating process, buy the service ecosystem, not the lowest quote.
  3. What else do you already own? If the cost is tied to a battery platform or spare parts inventory, leverage that platform.

Those three questions will tell you which scenario you’re in. The product category is just the first clue. The real decision is about how the purchase behaves over its life.

Bottom Line

I don’t think there is a universal “best” Dimplex model, and I certainly don’t think the cheapest fan or filter is automatically the right one. The procurement habit that has saved my budget the most is simple: calculate the total cost before comparing the sticker price.

Prices move. What I paid for a Dimplex baseboard heater in 2021 won’t be what you pay in 2025. The market changes, so check current quotes. The principle doesn’t change.