Solo, grill, convection or OTG: which suits a Nellore kitchen?

If the oven's main job is reheating and defrosting, buy a solo. If you want to brown and crisp now and then, a grill model adds that for a little more. If you will genuinely bake cakes, roast vegetables or make pizza at home, you want convection — or an OTG, which is a different appliance altogether. That is the short version; the rest of this guide is the detail that helps you pick between them for a Nellore kitchen, where heat, space and power matter more than in a cooler city.

The four types, plainly

Solo. Microwave heating only. Reheats, defrosts, boils milk, cooks rice and vegetables fast. The cheapest to buy, the simplest inside — magnetron, transformer, turntable, fan, a control board — and so the cheapest to repair. Throws the least heat into the kitchen. Cannot brown anything.

Grill. A solo plus a heating element in the roof and a metal rack. Adds browning: a crisp top on a baked dish, grilled paneer, toast. Still cannot bake properly because heat comes from one direction. Slightly more to go wrong — the element and its thermostat — but those are ordinary parts.

Convection. A solo plus a heating element and a fan that circulates hot air, so the cavity works as a small oven. Bakes cakes, roasts, makes pizza, and still reheats like a solo. Costs more, weighs more, draws more power in oven mode, and in summer makes the kitchen noticeably warmer. More parts, but all standard ones, and the oven is worth more, so repair usually beats replacement.

OTG — oven, toaster, griller. Not a microwave at all. Heating elements top and bottom, a timer, sometimes a fan and a rotisserie. Bakes very evenly, cheap to buy for its size, nearly nothing to fail and cheap to fix when it does. But it has no magnetron: heating a cup of tea takes ten minutes, not one. It is a second appliance, not a replacement for a microwave.

Match it to how you cook

Be honest about the daily use, not the occasional ambition.

• Reheating, defrosting, milk, rice, steaming vegetables, the odd instant noodles: solo. Most Nellore homes are here.
• All of that plus occasional grilled or crisped dishes: grill.
• All of that plus baking a few times a month: convection.
• Baking regularly and you already own a microwave: add an OTG rather than replace a working solo with a convection.

A convection oven that only ever reheats is money spent on a fan and element that never switch on.

What Nellore adds to the decision

Heat. From March to June the kitchen is already hot. A solo adds little. A convection in oven mode, or an OTG, is a heater running in the room. If you bake, do it early morning or after dark in summer.

Power. A solo draws roughly 1,200 to 1,400 watts while heating; a convection in oven mode and an OTG draw more. None of them runs on an ordinary home inverter. Use a 16 A earthed socket, not an extension board, and if your evenings bring voltage dips, expect slightly slower heating on any of them.

Space. A 20-litre solo sits comfortably on a narrow counter. A 28-litre convection needs its footprint plus the ventilation gap behind and above, which in a small Nellore kitchen is often the deciding constraint. Measure the spot before you measure the ambition.

Humidity and salt. All types share the same weak points in damp air: the cavity paint, the door seal, the keypad membrane. A stainless steel cavity holds up better than painted steel in a coastal home, and is worth choosing if you live near the eastern edge of the city, Muthukur or Krishnapatnam.

Where it should sit

Whichever type you buy, the magnetron is cooled by a fan through vents on the back, sides or top, and those vents need open air. Work to the manual's gaps — roughly 10 cm behind, 5 to 10 cm each side, 20 to 30 cm above — and keep them: no cloth or tiffin box on top, no spice tins against the sides, not pushed flat to the wall. Keep it away from the gas stove and out of a west-facing window's sun. Most manuals say not to put it on the fridge — warm, vibrating, and too high to lift a hot dish from safely. Countertop models are not built-in ovens; for a cupboard, buy a built-in model or the maker's trim kit. An oven that stops mid-cycle on a May afternoon and restarts after a rest is the thermal cut-out saying it is too hot where it lives — fix the placement before booking a repair.

Repair and running costs by type

Type	Repair complexity	Heat into kitchen	Best for
Solo	Lowest	Low	Reheating, everyday
Grill	Low	Low-medium	Reheating plus browning
Convection	Medium	Medium-high in oven mode	Baking and everything else
OTG	Lowest	High while baking	Baking, as a second appliance

Repair prices on our rate card are the same across microwave types: ₹350 for most faults, ₹399 for not heating, parts at MRP and shown before fitting. A convection oven simply has a couple more parts that can ask for a visit.

Two mistakes to avoid

Buying convection "just in case" and never using oven mode — you pay more and heat the kitchen for a feature you do not use. And buying the largest cavity because it seems like value — a 32-litre oven in a small kitchen with no ventilation gap runs hot. Pick the type for your cooking, the size for your counter, and the cavity finish for your air.