ROOM SIMULATIONS

CFD · OpenFOAM · one room, one change

The air in your room, solved.

We simulate the actual physics of air in ordinary rooms: where the cold from the AC lands, what leaves the oven when the door opens, how fast a shut bedroom fills with CO2. The same room twice, one thing changed, and the verdict the numbers give. For HVAC manufacturers and brands, we run the same comparison on your product.

Send your room For brands and HVAC companies
THE FAN FIGHT · A/B
3,300,847
views in the last 30 days
1,867,771
accounts reached
99 %
of views from people who don't follow us
2,280
followers

Instagram Graph API, latest reading 22 September 2026. 39 episodes in the window. The median episode old enough to have finished travelling (48 hours) has 14,636 views.

Most watched

Every figure below is read from Instagram, not estimated. Average watch time longer than the clip means people replay it. The most watched episode began as a viewer's comment.

Cover of THE FAN FIGHT 1.3M views

THE FAN FIGHT

A viewer's argument with their father, sent in the comments: with the AC on, should the floor fan point up or at the sofa? The numbers said both were right.

views
1,333,360
accounts reached
716,389
avg watch
18.6 s on a 15 s clip 124 %
shares · saves
780 · 1,128
Watch on Instagram →
Cover of OVEN 635k views

OVEN

What leaves the oven when you open the door, slowed down to the six seconds that reach your face.

views
635,178
accounts reached
286,278
avg watch
13.3 s on a 8 s clip 166 %
shares · saves
642 · 580
Watch on Instagram →
Cover of THE VANES 532k views

THE VANES

Air conditioner vanes down or up, over a bed. Where the cold air actually lands.

views
531,815
accounts reached
274,468
avg watch
18.2 s on a 15 s clip 122 %
shares · saves
488 · 503
Watch on Instagram →

How it works

Each episode is a real simulation run, not an animation. Every number on screen comes out of the solver.

  1. You send the room

    Dimensions, what heats or cools it, and the question you are arguing about at home. A floor plan or a photo helps.

  2. We check the question

    Before anything is solved we check that a simulation can answer it honestly. If it can't, we say so and you pay nothing.

  3. We solve both versions

    OpenFOAM on a cluster, about an hour and a half per run, then a 15 second reel with the numbers. Typical turnaround is two to three days.

For brands and HVAC companies

Air conditioners, fans, heaters, ventilation, anything that moves air in a room. We show what your product does to the air around a person, next to the alternative, with numbers from the solver. Viewers sending their own room for a possible episode pay nothing.

Product comparison

For HVAC manufacturers and installers. Your unit against the alternative, in a real room, solved.

€890 – €1,990

by number of configurations and geometry

  • Two or three configurations of the same room, one change each
  • A 15 second reel of the result, yours for sales and socials
  • A short written report with the numbers
  • The raw field data from the run
  • Published on the channel only if you want it
Ask about this

Sponsored episode

For brands. Your product as one arm of an A/B episode, in front of an audience that argues about exactly this.

€590

plus a reach bonus: +€200 above 50k views in 48 h, +€490 above 200k

  • Its own solve of both arms, the reel, frames and raw data
  • The right to use the video in your own channels
  • Marked as a paid partnership
  • The bonus is paid afterwards, from the count you can see yourself
Ask about this

Episode licence

For showrooms, sales teams and trade fairs. A finished episode on your own screens.

€290

three episodes for €690

  • Any published episode, as delivered to Instagram
  • For your site, your socials, a trade fair screen
  • Available the same day
Ask about this

The physics is not for sale. If the simulation says your product does not help, you hear it before anything is published, and the result is not changed.

Prices are final, no VAT is added (not a VAT payer).

What a simulation can and can't tell you

Our runs are 2D sections through the room: a slice, not the whole volume. That is what makes them fast enough to do daily, and it has limits we state in every caption.

Answers well

  • A heat or cold source inside a closed roomAir conditioners, heaters, ovens, a car in the sun, a tent, a shower. Where the warm or cold air goes and what it does at your bed or your face.
  • One change, comparedVanes up or down, fan here or there, door open or shut. The same room twice is where the method is strongest.
  • Build-up over timeCO2 in a shut bedroom, steam in a bathroom, heat in a parked car.

Overstates or can't answer

  • Large openings to another spaceIn a slice, a door fills the whole width of the section, so the exchange through big openings comes out several times too strong. A window works; a front door to winter does not.
  • How far a jet carries heatA flat jet in a slice does not mix sideways, so a hair dryer or an iron stays hot far too far from the nozzle.
  • Plume strengthA rising plume is stronger in a slice than in 3D: above an opened oven door we measured 100 °C in 2D and 24 °C in a full 3D run. The mechanism holds; the magnitude needs 3D.
  • Tiny differencesWhen two versions differ by less than about half a degree, we call it a draw, not a result.

Send your room

Tell us about the room and the question. Every submission is read. Rooms that make a good episode are solved for free and published on the channel.

Want a private answer, or one for your product? That is a commissioned simulation.

We use your details only to reply to this request, and delete them when you ask. Or write directly: polisensky.john@gmail.com

Size in metres