Passive EdgeEdge Comfort

Residential Studio

Room-scale thermal design.

Set the climate, space and comfort target. Size a PCM kit, then review the design.

Step 01 — Climate

Where is the room?

Choose a country on the map, then refine by city.

European markets

Supported cities

Selected locationParis · France
7.8h

P90 climate fit: Strong fit

7.8 night hours in Paris fall below a 24°C PCM phase point; 6 hours are required for recharge.

Step 03 — Your room

Residential room model

This Studio is only for homes and individual rooms. Commercial projects now use a separate calculation workspace.

Open commercial workspace

Can a window open at night?

5 quick building questionsRefine load

This changes transmission, solar and internal heat gains — not just floor area.

Step 04 — Supplemental cooling

Studio sizes passive measures and PCM first. Only after that quantity is fixed does it add the minimum active control needed for the remaining comfort gap.

Automatic active-cooling recommendation

Natural night cooling or PCM-only capacity cannot maintain the selected comfort target. Studio therefore includes TROTEC PAC 2010 SH for up to 2 hours per day. Its price is not included in the PCM quote.

2.0 kW room cooling · exhaust hose · up to 26 m² / 65 m³

Credited only when the exhaust hose and window seal reject condenser heat outdoors.

Official store showed stock on 12 Jul 2026; re-check before ordering.

Official product source

Model credit: 2,000 W room heat removal with sealed outdoor exhaust.

Step 05 — What do you already own?

Anything you own is marked “Reuse yours”. The rest gets “Partner pick” — never a forced bundle.

PCM quantity, fan quantity, price and comfort results appear only after this calculation.

Step 02 — Thermal screening

Public calculation basis

P90 design warm dayERA5 2015–2024 · 24 hoursThe 90th-percentile daily peak, with night temperature and solar conditions from the same warm-day band.

One public model is used for every PCM quantity. It represents roughly the hottest 10% of warm-season days and is a decision estimate, not a performance guarantee.

Extreme multi-day heatwaves can prevent overnight PCM regeneration; active cooling is the correct fallback in that condition.

P90 design-warm-day result

PCM quantity is calculated against this single active model.

Day and night speeds are controlled separately. Boost automatically returns to a lower mode after 2 hours.

PCM quantity result

16

PCM modules · T3 (2.464 kWh nominal)

P90 design warm-day screening

Engineering review required

The conservative stress case does not hold the selected target.

Occupied peak

25.9°C

Peak room load

0.85 kW

P90 design-day heat

6.7 kWh

Fans required

2 fans

08:00–19:00 occupied target · Final performance is released only after airflow and a 7-day calibration using customer-supplied or independently sourced sensors are checked.

Kit tier
Engineering review
Module type
T3 · 30mm
Nominal storage
2.464 kWh
Usable screening storage
1.971 kWh
Placement
Furniture-integrated PCM bank
Temperature zone
Sleep Pack ~22°C
Cooling mode
PCM buffer + limited 2 kW portable AC assist
P90 design-day AC assist
3.7 kWh · 1.8 h
Digital model
Studio AI Hub — online, no hardware
DIY quantity explorer

See how the room responds, then choose your PCM quantity.

The chart keeps the room and climate fixed, so you can see the difference PCM makes. The Studio recommendation stays marked as you explore.

Dynamic temperature response

Same room, with and without your selected PCM quantity

Only the PCM quantity changes between the two lines. Room, climate, shading, night ventilation and airflow stay the same; active cooling is left out.

Indoor temperature (°C)night chargingstill warmcomfort gained26° occupied target00:006:0012:0018:0024:0020°C24°C27°C31°C34°C
Same plan without PCMWith 16 PCM modulesAdded comfort timeStill above comfort limit

Your PCM quantity

16T3 PCM
6 below recommendation
060 module comparison range
€25.90 × 16
Launch room-kit price€402
Standard reference€574
First-room credit−€12
Your kitInstalled AC reference starts at €2,100

Purchase-cost comparison only. PCM buffers heat; it does not provide compressor cooling or dehumidification.

Nominal / usable storage2.464 / 1.971 kWh

Peak temperature reduction

−1.5°C

31.6°C → 30.1°C

Comfortable occupied time

3.5 h

without PCM 2.8 h

Overheating exposure

−27%

occupied degree-hours removed

Expected PCM effect

Strong effect

8.0 h at least 0.5°C cooler

Your room, live

Click a numbered part to inspect it. Faded modules are add-ons waiting to join.

Solar ShadingNight air 17°Outside 31°Monitoring KitYour Furniture ShellNight Air PathPCM Module BankAirflow FanStudio AI calculation modelSTUDIOONLINE MODELHybrid RechargeIndoor 23°CIndoor ~25°CYour Furniture Shell1PCM Module Bank2Night Air Path3Airflow Fan4Studio AI calculation model5Hybrid Recharge6Solar Shading7Monitoring Kit8
Edge Comfort product — PCM modulesStudio model — online calculation, no hardwareReuse yours / Partner pick — DIY layer

From Edge Comfort — PCM products

Studio calculation model — Included online, no hardware shipment

Your DIY layer — Reuse yours or Partner pick

Edge Comfort product · Thermal storage

PCM Module Bank

T3 high-conductivity PCM modules — the core product we make and ship.

Included in recommended kit

Details

Final system check

P90 Paris design warm day · 08:00–19:00 occupied target.Selected PCM quantity: 16

Engineering review required

Current-room occupied peak

40.4°C

Passive-stage PCM peak reduction

−1.5°C

P90 overheating intensity reduction

−27%

Robust PCM effect

Strong

Noticeably cooler on P90 day

8.0 h ≥ 0.5°C · 3.3 h ≥ 1°C

Overheating exposure removed

7.3 K·h

Base / conservative peak reduction

1.5°C / 1.4°C

Overheating exposure combines how far and how long occupied temperature stays above the target. These are passive-stage design-day metrics; active cooling is excluded.

Cool One Room launch

€402

€25.90 per module × 16 modules

VAT included for France. This quote covers PCM modules only. Sensors and delivery are not included. Studio AI Hub means the calculation model on this page, not shipped hardware or a separately priced product. Fans, compressor AC, furniture work and installation are separate.

Standard reference

€574

First-room credit

−€12

Installed AC reference

From €2,100

The AC figure is a local purchase-cost planning reference, not an equivalence claim. PCM buffers heat and needs a recharge path; it does not dehumidify. Final remote-zone delivery is confirmed before payment.

Engineering review is used only when model fit or PCM effect requires it.

Target / peak

26° / 25.9°

P90 outdoor peak

29.8°C

Fan quantity

2 fans

Dawn charge

97%

Forced-air heat exchange & fan selection

PCM plates / 10 mm channels

16 / 15

Effective open flow area

0.0383 m²

Recommended mode

Standard · 1.0 m/s

Day discharge velocity

1.0 m/s

Night recharge velocity

1.2 m/s

Actual channel airflow

138 m³/h

Fan design airflow

186 m³/h

Suggested rated airflow

320 m³/h

System / design static

20.4 / 28.6 Pa

Estimated electric power

1.7–2.7 W

Suggested rated power

20 W

Fan type / quantity

EC centrifugal fan · 2

PWM working range

48–68%

Noise target

≤ 35 dB(A)

Daily fan electricity

0.044 kWh

72 h operating projection

0.132 kWh

Annual fan estimate

5.2 kWh / 120 equivalent days

Natural / forced PCM power

27 / 79 W

Avoided cooling energy is not verified; report fan and recharge consumption without claiming net energy savings. Active-recharge electricity estimate: 17.5 kWh/year. Fan share of system benefit is not stated until avoided cooling is verified.

PCM dischargemax 103.0 W0.5 m/s: 59.0 W1.0 m/s: 79.0 W1.5 m/s: 92.0 W2.0 m/s: 103.0 WNight regenerationmax 65 %0.5 m/s: 37.6 %1.0 m/s: 50.3 %1.5 m/s: 58.3 %2.0 m/s: 65.3 %Fan electricitymax 16.2 W0.5 m/s: 0.3 W1.0 m/s: 2.1 W1.5 m/s: 6.9 W2.0 m/s: 16.2 W0.5 m/s1.0 m/s1.5 m/s2.0 m/sdashed: recommendeddotted: diminishing-return region
VelocityActual channel flowPCM dischargeNight regenerationFan power
0.5 m/s69 m³/h59 W38%0.3 W
1.0 m/s138 m³/h79 W50%2.1 W
1.5 m/s207 m³/h92 W58%6.9 W
2.0 m/s275 m³/h103 W65%16.2 W

Model estimate only. Manufacturer fan curves, assembled-product pressure loss, airflow distribution, sound and the h-air correction require prototype calibration.

The conservative stress case does not hold the selected target. Do not sell this case as passive temperature control. Keep active cooling available and complete an engineering review.

Screening model EC-HB-2.1 includes the selected local ERA5 24-hour weather profile, envelope, infiltration, solar gain, internal gains, PCM energy, exchange power and nightly recharge.Final control requires verified airflow and a 7-day calibration using customer-supplied or independently sourced indoor/outdoor sensors.Stress test: 26.3°C occupied peak with load +10%, PCM power −25%, usable capacity −10% and air-side heat transfer −20%.

Kit & parts list

You cover 2 parts yourself — the PCM quote is unit price × installed module quantity.

  • 1

    Furniture Shell

    Retrofit your own bench, sideboard or cabinet using our free cut-out and airflow templates.

    Reuse yours
  • 2

    PCM Bank — 16 × T3 · 2.464 kWh nominal · 1.971 kWh usable screening · Sleep Pack ~22°C · €25.90 × 16 = €402

    Ships from Edge Comfort with your kit.

    We ship
  • 3

    Night Air Path

    Use your existing window with a tilt-lock or a simple foam adapter.

    Reuse yours
  • 4

    Airflow Fan

    Silent 140 mm PWM fan category: A quiet low-voltage fan set from an airflow partner. Standard PC or USB fans can be swapped in.

    Partner pick
  • 5

    Studio Model

    Included online calculation model; no hardware or sensors are shipped.

    Online model
  • 7

    Solar Shading

    External shading kit category: A blind or awning category from a shading partner. Existing curtains, blinds or equivalent shading remain valid.

    Partner pick

Partner picks are curated recommendations — buy them anywhere, or swap in anything equivalent. The Studio only cares that the airflow and capacity numbers work.

DIY Studio | Edge Comfort