---
title: "readAttributeEstimatedHeatRequired(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwaterheatermanagement/readattributeestimatedheatrequired(completion:)"
---

# readAttributeEstimatedHeatRequired(completion:)

## Declaration

```swift
func readAttributeEstimatedHeatRequired(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeEstimatedHeatRequired() async throws -> NSNumber
```