Octopus Energy Recommends A 4pm Rule To Save On Heating

Okay, grab your mug. Let’s talk about heating. You know, that thing we all argue over like it’s a family heirloom.

Octopus Energy just dropped a little gem. They call it the 4pm rule. And honestly? It might save you a chunk of change.

So, What’s This 4pm Rule?

It’s painfully simple. Octopus says you should turn your heating off at 4pm. Yes, really. Off.

Here’s the trick: your house doesn’t instantly turn into an icebox. It holds heat. So you’re banking that warmth for the evening—when you actually want it.

Think of it like a slow-cooker for your living room. You stop adding heat, but the walls and floors keep radiating it. It’s basically free warmth after 4pm.

Why 4pm? Isn’t That Weirdly Early?

I know, right? Feels like you’re prepping for a polar expedition at teatime. But here’s the science-y bit.

Energy demand peaks between 4pm and 7pm. Everyone gets home, cranks the thermostat, and the grid goes, “Whoa, buddy.” That’s when energy is most expensive on variable tariffs.

By turning off at 4pm, you skip that expensive window. Your house stays toasty through dinner, and you don’t pay peak prices. Cha-ching.

But I’ll Freeze! Won’t I?

Relax. You won’t turn into a human popsicle. If your home is reasonably insulated, it stays warm for hours.

Try it on a mild evening first. You might be shocked how cosy it feels. I tested it last week—by 8pm, my flat was still at 19°C. I was in a t-shirt. Unbelievable.

And if you do get chilly? Blankets, hot water bottles, and a rogue cat on your lap. Problem solved.

What About Smart Thermostats?

Oh, this is where it gets fun. Octopus loves a smart thermostat. They practically sing hymns about them.

Set your heating to turn off at 4pm automatically. Then, if the house dips too low—say 16°C—it kicks back on briefly. That’s fail-safe warmth without the huge bill.

But honestly? Most people don’t even need that boost. The 4pm rule works like a charm on its own.

Is This Just for Octopus Customers?

Nope. This advice is for anyone paying for gas or electricity. Octopus just shouted it from the rooftops.

They’re basically saying, “Hey, we want you to use less of our stuff. It’s better for your wallet and the planet.” Weirdly wholesome, right?

Of course, if you’re on a fixed-rate tariff, the savings are smaller. But the principle—using thermal momentum—still holds. Turn off earlier. Stay warm longer.

What If I Work From Home?

Ah, the WFH crowd. You’re always cold, aren’t you? I see you shivering in your home office.

Here’s the hack: heat a single room earlier in the day. Then at 4pm, turn the whole house off. The room you work in will stay warm until you log off.

Or, you know, get an electric blanket. They use tiny amounts of energy. Wrap yourself in a heated cocoon and laugh at the 4pm rule. You do you.

The Real Trick Nobody Talks About

Most of us heat our homes way too early. We crank it at 3pm because we’re feeling a draft. But stop. Breathe. Wait until you actually see your breath.

Octopus suggests you heat only until 4pm—then let the building do the work. It’s like a heat battery that recharges every morning.

I’ve started setting a timer. 3pm heat blast, 4pm off. By 9pm, I’m still in socks. No jumper required. It feels like cheating.

But What About My Mum’s Advice?

Your mum probably told you to keep the heating on low all day. “It saves money,” she said. She was wrong. Sorry, Mum.

Modern physics says: heat only when you need it. Let the house cool when you’re asleep or out. The 4pm rule is basically physics with a hug.

Your mum will come around. Just show her your lower bill. She loves a bargain.

Final Sip of Coffee

Look, I’m not saying you’ll become a heating ninja overnight. But try the 4pm rule for a week. See if you survive. Bet you will.

Octopus isn’t forcing you. They’re just pointing out that you’re probably burning cash between 4 and 7pm for no reason. And nobody likes burning cash.

So go on. Turn it off at 4. Grab a blanket. And enjoy the smug feeling of outsmarting your energy bill. You’ve earned it.