# Mill Invisible Smart WiFi Panel Heater 400 W White IPX4

**URL:** https://aio.lv/en/product--mill-pa400wifi4-box--12611115
**Data updated:** 2026-08-02 04:24 (EEST)
**Category:** Oil Heaters
**Manufacturer:** Mill
**Manufacturer code:** PA400WIFI4 BOX
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 127.99 €
**Prices and availability valid until:** 2026-09-02 23:59
**Price without VAT (21%):** 105.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mill-pa400wifi4-box--12611115

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 12.08.2026 | 1.79 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Mill Invisible Smart WiFi Panel Heater with 400 W power, designed for rooms up to 4-6 m. Features IPX4 splash-proof rating and smart WiFi connectivity for easy temperature control. Ideal for efficient and modern heating in small living spaces, offices, or bedrooms.

## Long description

The Mill Invisible Smart WiFi Panel Heater 400 W White IPX4 is a modern heating solution designed to provide reliable warmth in small spaces. Featuring a sleek white panel design, it blends seamlessly into contemporary home and office interiors while delivering efficient heating performance.
Advantages
This panel heater combines minimalist aesthetics with advanced smart functionality. The integrated WiFi connectivity allows users to easily manage and monitor room temperatures remotely using a smartphone application. Its construction includes an IPX4 splash-proof rating, making it suitable for safe operation in environments that may be exposed to moisture. The low-profile design ensures it occupies minimal wall space while offering consistent thermal output.
Suitable for
Heating small living rooms, bedrooms, or home offices up to 4-6 square meters
Maintaining a comfortable baseline temperature in secondary residential spaces
Remote temperature scheduling via smart devices
When it may not be suitable
This appliance is not designed to heat large rooms, open-plan living areas, or spaces exceeding 6 square meters as the 400 W power output will be insufficient. It is also not intended for primary standalone heating in uninsulated buildings or areas with high heat loss.
Key specifications
Power output: 400 W
Recommended room size: 4-6 m²
Connectivity: Smart WiFi
Splash-proof rating: IPX4
Color: White
How to use
Mount the panel heater securely to the wall using the provided hardware, ensuring appropriate clearance around the unit for proper air circulation. Connect the device to a standard electrical outlet and follow the manufacturer instructions to pair it with your home WiFi network. Use the compatible mobile application to set desired temperature schedules, monitor heating status, and adjust settings according to your daily routine.
What to consider before purchase
Verify that the room size does not exceed the recommended 4-6 square meters
Ensure a stable WiFi network is available within the installation area if smart control features are desired
Check wall space availability for proper mounting clearance
Regularly dust the exterior surface of the heater with a dry cloth while the device is turned off and cool to maintain optimal heat distribution and appearance.

## FAQ

### How much does the Mill Invisible Smart WiFi Panel Heater 400W cost, and is it available for purchase?

The price is 127.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Mill Invisible Smart WiFi Panel Heater 400W be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Mill products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Mill service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12611115/69122381_large.webp