Sumec Firman

Sumec Firman SDG12000SE 8.5kVA Diesel Soundproof Generator (Key Start)

Name: Sumec Firman SDG12000SE 8.5kVA Diesel Soundproof Generator (Key Start)
Brand: Sumec Firman
SKU: SP-00282
Price: 1620000 NGN
Availability: InStock

8.5 kVA6.8 kWDieselKey startSoundproof12-month warranty

A soundproof diesel generator rated 8.5kVA for steady single-phase backup power. Suited for homes, shops or small offices that need reliable supply during NEPA/PHCN outages.

₦1,620,000

Pay with USDT/USDC and save 10%: ≈ ₦1,458,000

In stock — ready to shipSKU SP-00282

Delivery toYour state

1–2 working days · we call before the driver sets out

Add ATS (automatic changeover) + professional installationOur engineer will confirm the price before any work starts — nothing is charged for it now.

Ask on WhatsApp

12-month warrantyRepair or replacement, plus service and genuine parts.
Brand-new, original boxStarted and tested with you on delivery.
First order? WELCOME5 −5%Stacks with the 10% crypto discount.

Overview

The Sumec Firman SDG12000SE is an 8.5kVA single-phase diesel generator built for continuous backup and site use. It combines an air‑cooled OHV engine with a brush alternator and AVR to provide stable output for common appliances.

Its soundproof enclosure reduces running noise compared with open-frame sets, making it more suitable for residential and commercial areas. The unit includes electric key start with recoil as a backup and a DC charging outlet for battery top-up.

Key features

8.5kVA rated power for lights, fans, fridges, TVs, small pumps and office equipment
Soundproof casing to reduce disturbance in neighbourhoods and shops
Electric key start with recoil backup for easy operation
15L diesel tank for extended runtime between refills
Robust SDE186FAE OHV single‑cylinder engine, air‑cooled

What can it power?

Typical load estimate for 6.8 kW rated output, keeping a 20% safety margin (≈ 5,667 W usable). Motors (fridges, ACs, pumps) need extra power for a few seconds at start-up — that is already counted.

Appliance	Typical watts	This generator
LED bulbs	10 W	40+
Ceiling fans	75 W	40+
TV (32–43")	70 W	40+
Decoder / DStv	25 W	40+
Laptops	65 W	40+
Fridge	150 W (×3 at start)	Up to 35
Chest freezer	200 W (×3 at start)	Up to 26
Air conditioner 1 HP	900 W (×3 at start)	Up to 4
Air conditioner 1.5 HP	1,300 W (×3 at start)	Up to 2
Air conditioner 2 HP	1,800 W (×3 at start)	Up to 1
Pumping machine 1 HP	750 W (×3 at start)	Up to 5
Microwave	1,000 W	Up to 5
Electric iron	1,000 W	Up to 5
Hair dryer (hood)	1,200 W	Up to 4

A typical mix it can run together: 8 × LED bulbs, 3 × Ceiling fans, TV, Decoder, Fridge, Chest freezer, 1 HP AC, Pumping machine.

Typical load estimate only — real consumption depends on your appliances. Numbers in the table are “one type at a time”. Check your exact list with the power calculator or send it to us on WhatsApp.

Specifications

Brand	Sumec Firman
Model	SDG12000SE
Rated power	8.5 kVA / 6.8 kW
Fuel	Diesel
Starting	Key start
Type	Soundproof
Warranty	12 months
SKU	SP-00282
Coil	100% Copper
Phase	Single Phase
Engine	SDE186FAE 4‑stroke Single Cylinder OHV Air‑cooled
Weight	175 kg
DC Output	12 V / 8.3 A
Fuel Type	Diesel
Alternator	Brush, AVR
Measurement	990 x 599 x 785 mm
Running Watts	7,500 Watts
Starting Watts	8,500 Watts
Starting System	Electric/Recoil
Diesel Tank Capacity	15 L
Noise Level @ 7meters	93 dB

What's in the box

Generator unit
User manual

Delivery & installation

We confirm your order

A Steady Power agent calls or WhatsApps you to confirm the model, address and delivery day.

Delivery to your door

Lagos 1–2 working days, Abuja & Port Harcourt 2–4, other states 3–7. Large sets come by truck with offloading.

Unboxing & test run

We unbox with you, add oil and fuel and start the generator so you see it working before you sign.

Installation & ATS on request

Our engineers can install it and fit an automatic changeover (ATS). The price is agreed before any work.

Warranty & service

12 months cover

From the delivery date, against manufacturing defects in the engine, alternator, AVR, control panel and starter.

How to claim

Send your order number and a short video on WhatsApp. We diagnose, then repair or replace — and keep you updated.

Service & parts

Oil changes, servicing and genuine spare parts in Lagos, Abuja and Port Harcourt, during and after the warranty.

Not covered: wear parts (plugs, filters, oil), wrong fuel, running without oil, overloading, water or physical damage. Full warranty terms

Payment options

Bank transfer

Order online, see our company account on your order page, transfer from your bank app and tap “I've paid”.

USDT / USDC — 10% off

Pay on a secure crypto payment page and save 10%. Price with crypto: ≈ ₦1,458,000.

WELCOME5 −5%

On your first order. Stacks with the crypto discount.

Questions about this generator

What can the SDG12000SE power?

At 6.8 kW rated output, with a 20% safety margin, it can typically run: 8 × LED bulbs, 3 × Ceiling fans, TV, Decoder, Fridge, Chest freezer, 1 HP AC, Pumping machine at the same time. This is an estimate — send us your list on WhatsApp or use the power calculator to check your exact load.

Why diesel?

Diesel engines use less fuel per hour under load and are built for long daily running — the usual choice for offices, estates and anything above 10 kVA.

How do I start it?

With the key — electric start, no pull cord. The starter battery should be charged; the generator keeps it topped up while running.

Is it quiet?

It sits in a soundproof canopy, so it is much quieter than an open-frame set — well suited to estates and offices. Place it outdoors on a level base with free airflow.

Is it brand-new and genuine?

Yes. Every Sumec Firman unit we sell is new, in the original manufacturer's box, with its manual and accessories.

What does the warranty cover?

12 months from delivery against manufacturing defects — engine, alternator, AVR, control panel and starter. We repair or replace. See Warranty & service.

How fast can you deliver?

Usually 1–2 working days in Lagos and 2–4 working days to Abuja and Port Harcourt; other states on request. We call or WhatsApp you before the driver sets out.

Can you install it with an ATS?

Yes. Tick “Add ATS + professional installation” above. Our engineer confirms the price after a quick look at your site (photos on WhatsApp are enough) — nothing is charged for it until you agree.

Can I pay with crypto?

Yes — in USDT or USDC, and you save 10%. Choose “Crypto” at checkout and pay on a secure crypto payment page. Bank transfer is the other option.

Where do I service it?

Talk to us on WhatsApp — we arrange servicing and genuine spare parts in Lagos, Abuja and Port Harcourt, during and after the warranty.